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convection flow</title> <meta name="description" content="Search results for: forced convection flow"> <meta name="keywords" content="forced convection flow"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="forced convection flow"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 5396</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: forced convection flow</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5396</span> Forced Convection Boundary Layer Flow of a Casson Fluid over a Moving Permeable Flat Plate beneath a Uniform Free Stream</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20M.%20Arifin">N. M. Arifin</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20P.%20M.%20Isa"> S. P. M. Isa</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Nazar"> R. Nazar</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Bachok"> N. Bachok</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20M.%20Ali"> F. M. Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=I.%20Pop"> I. Pop</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the steady forced convection boundary layer flow of a Casson fluid past a moving permeable semi-infinite flat plate beneath a uniform free stream is investigated. The mathematical problem reduces to a pair of noncoupled ordinary differential equations by similarity transformation, which is then solved numerically using the shooting method. Both the cases when the plate moves into or out of the origin are considered. Effects of the non-Newtonian (Casson) parameter, moving parameter, suction or injection parameter and Eckert number on the flow and heat transfer characteristics are thoroughly examined. Dual solutions are found to exist for each value of the governing parameters. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=forced%20convection" title="forced convection">forced convection</a>, <a href="https://publications.waset.org/abstracts/search?q=Casson%20fluids" title=" Casson fluids"> Casson fluids</a>, <a href="https://publications.waset.org/abstracts/search?q=moving%20flat%20plate" title=" moving flat plate"> moving flat plate</a>, <a href="https://publications.waset.org/abstracts/search?q=boundary%20layer" title=" boundary layer"> boundary layer</a> </p> <a href="https://publications.waset.org/abstracts/13001/forced-convection-boundary-layer-flow-of-a-casson-fluid-over-a-moving-permeable-flat-plate-beneath-a-uniform-free-stream" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13001.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">466</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5395</span> Unsteady Forced Convection Flow and Heat Transfer Past a Blunt Headed Semi-Circular Cylinder at Low Reynolds Numbers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Y.%20El%20Khchine">Y. El Khchine</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Sriti"> M. Sriti</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the present work, the forced convection heat transfer and fluid flow past an unconfined semi-circular cylinder is investigated. The two-dimensional simulation is employed for Reynolds numbers ranging from 10 ≤ Re ≤ 200, employing air (Pr = 0.71) as an operating fluid with Newtonian constant physics property. Continuity, momentum, and energy equations with appropriate boundary conditions are solved using the Computational Fluid Dynamics (CFD) solver Ansys Fluent. Various parameters flow such as lift, drag, pressure, skin friction coefficients, Nusselt number, Strouhal number, and vortex strength are calculated. The transition from steady to time-periodic flow occurs between Re=60 and 80. The effect of the Reynolds number on heat transfer is discussed. Finally, a developed correlation of Nusselt and Strouhal numbers is presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=forced%20convection" title="forced convection">forced convection</a>, <a href="https://publications.waset.org/abstracts/search?q=semi-circular%20cylinder" title=" semi-circular cylinder"> semi-circular cylinder</a>, <a href="https://publications.waset.org/abstracts/search?q=Nusselt%20number" title=" Nusselt number"> Nusselt number</a>, <a href="https://publications.waset.org/abstracts/search?q=Prandtl%20number" title=" Prandtl number"> Prandtl number</a> </p> <a href="https://publications.waset.org/abstracts/150301/unsteady-forced-convection-flow-and-heat-transfer-past-a-blunt-headed-semi-circular-cylinder-at-low-reynolds-numbers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/150301.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">109</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5394</span> Experimental on Free and Forced Heat Transfer and Pressure Drop of Copper Oxide-Heat Transfer Oil Nanofluid in Horizontal and Inclined Microfin Tube</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=F.%20Hekmatipour">F. Hekmatipour</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20A.%20Akhavan-Behabadi"> M. A. Akhavan-Behabadi</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Sajadi"> B. Sajadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the combined free and forced convection heat transfer of the Copper Oxide-Heat Transfer Oil (CuO-HTO) nanofluid flow in horizontal and inclined microfin tubes is studied experimentally. The flow regime is laminar, and pipe surface temperature is constant. The effect of nanoparticle and microfin tube on the heat transfer rate is investigated with the Richardson number which is between 0.1 and 0.7. The results show an increasing nanoparticle concentration between 0% and 1.5% leads to enhance the combined free and forced convection heat transfer rate. According to the results, five correlations are proposed to provide estimating the free and forced heat transfer rate as the increasing Richardson number from 0.1 to 0.7. The maximum deviation of both correlations is less than 16%. Moreover, four correlations are suggested to assess the Nusselt number based on the Rayleigh number in inclined tubes from 1800000 to 7000000. The maximum deviation of the correlation is almost 16%. The Darcy friction factor of the nanofluid flow has been investigated. Furthermore, CuO-HTO nanofluid flows in inclined microfin tubes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanofluid" title="nanofluid">nanofluid</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer%20oil" title=" heat transfer oil"> heat transfer oil</a>, <a href="https://publications.waset.org/abstracts/search?q=mixed%20convection" title=" mixed convection"> mixed convection</a>, <a href="https://publications.waset.org/abstracts/search?q=inclined%20tube" title=" inclined tube"> inclined tube</a>, <a href="https://publications.waset.org/abstracts/search?q=laminar%20flow" title=" laminar flow"> laminar flow</a> </p> <a href="https://publications.waset.org/abstracts/82099/experimental-on-free-and-forced-heat-transfer-and-pressure-drop-of-copper-oxide-heat-transfer-oil-nanofluid-in-horizontal-and-inclined-microfin-tube" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82099.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">255</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5393</span> Forced Heat Transfer Convection in a Porous Channel with an Oriented Confined Jet</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Azzedine%20Abdedou">Azzedine Abdedou</a>, <a href="https://publications.waset.org/abstracts/search?q=Khedidja%20Bouhadef"> Khedidja Bouhadef</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present study is an analysis of the forced convection heat transfer in porous channel with an oriented jet at the inlet with uniform velocity and temperature distributions. The upper wall is insulated when the bottom one is kept at constant temperature higher than that of the fluid at the entrance. The dynamic field is analysed by the Brinkman-Forchheimer extended Darcy model and the thermal field is traduced by the energy one equation model. The numerical solution of the governing equations is obtained by using the finite volume method. The results mainly concern the effect of Reynolds number, jet angle and thermal conductivity ratio on the flow structure and local and average Nusselt numbers evolutions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=forced%20convection" title="forced convection">forced convection</a>, <a href="https://publications.waset.org/abstracts/search?q=porous%20media" title=" porous media"> porous media</a>, <a href="https://publications.waset.org/abstracts/search?q=oriented%20confined%20jet" title=" oriented confined jet"> oriented confined jet</a>, <a href="https://publications.waset.org/abstracts/search?q=fluid%20mechanics" title=" fluid mechanics"> fluid mechanics</a> </p> <a href="https://publications.waset.org/abstracts/10549/forced-heat-transfer-convection-in-a-porous-channel-with-an-oriented-confined-jet" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10549.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">382</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5392</span> Influence of Mass Flow Rate on Forced Convective Heat Transfer through a Nanofluid Filled Direct Absorption Solar Collector</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salma%20Parvin">Salma Parvin</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20A.%20Alim"> M. A. Alim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The convective and radiative heat transfer performance and entropy generation on forced convection through a direct absorption solar collector (DASC) is investigated numerically. Four different fluids, including Cu-water nanofluid, Al<sub>2</sub>O<sub>3</sub>-waternanofluid, TiO<sub>2</sub>-waternanofluid, and pure water are used as the working fluid. Entropy production has been taken into account in addition to the collector efficiency and heat transfer enhancement. Penalty finite element method with Galerkin’s weighted residual technique is used to solve the governing non-linear partial differential equations. Numerical simulations are performed for the variation of mass flow rate. The outcomes are presented in the form of isotherms, average output temperature, the average Nusselt number, collector efficiency, average entropy generation, and Bejan number. The results present that the rate of heat transfer and collector efficiency enhance significantly for raising the values of <em>m</em> up to a certain range. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DASC" title="DASC">DASC</a>, <a href="https://publications.waset.org/abstracts/search?q=forced%20convection" title=" forced convection"> forced convection</a>, <a href="https://publications.waset.org/abstracts/search?q=mass%20flow%20rate" title=" mass flow rate"> mass flow rate</a>, <a href="https://publications.waset.org/abstracts/search?q=nanofluid" title=" nanofluid"> nanofluid</a> </p> <a href="https://publications.waset.org/abstracts/66116/influence-of-mass-flow-rate-on-forced-convective-heat-transfer-through-a-nanofluid-filled-direct-absorption-solar-collector" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66116.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">293</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5391</span> Emperical Correlation for Measurement of Thermal Diffusivity of Spherical Shaped Food Products under Forced Convection Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Riaz">M. Riaz</a>, <a href="https://publications.waset.org/abstracts/search?q=Inamur%20Rehman"> Inamur Rehman</a>, <a href="https://publications.waset.org/abstracts/search?q=Abhishek%20Sharma"> Abhishek Sharma</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present work is the development of an experimental method for determining the thermal diffusivity variations with temperature of selected regular shaped solid fruits and vegetables subjected to forced convection cooling. Experimental investigations were carried on the sample chosen (potato and brinjal), which is approximately of spherical geometry. The variation of temperature within the food product is measured at several locations from centre to skin, under forced convection environment using a deep freezer, maintained at -10°C.This method uses one dimensional Fourier equation applied to regular shapes. For this, the experimental temperature data obtained from cylindrical and spherical shaped products during pre-cooling was utilised. Such temperature and thermal diffusivity profiles can be readily used with other information such as degradation rate, etc. to evaluate thermal treatments based on cold air cooling methods for storage of perishable food products. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=thermal%20diffusivity" title="thermal diffusivity">thermal diffusivity</a>, <a href="https://publications.waset.org/abstracts/search?q=skin%20temperature" title=" skin temperature"> skin temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=precooling" title=" precooling"> precooling</a>, <a href="https://publications.waset.org/abstracts/search?q=forced%20convection" title=" forced convection"> forced convection</a>, <a href="https://publications.waset.org/abstracts/search?q=regular%20shaped" title=" regular shaped"> regular shaped</a> </p> <a href="https://publications.waset.org/abstracts/16370/emperical-correlation-for-measurement-of-thermal-diffusivity-of-spherical-shaped-food-products-under-forced-convection-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16370.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">459</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5390</span> Numerical Study of Developing Laminar Forced Convection Flow of Water/CuO Nanofluid in a Circular Tube with a 180 Degrees Curve</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hamed%20K.%20Arzani">Hamed K. Arzani</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamid%20K.%20Arzani"> Hamid K. Arzani</a>, <a href="https://publications.waset.org/abstracts/search?q=S.N.%20Kazi"> S.N. Kazi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Badarudin"> A. Badarudin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Numerical investigation into convective heat transfer of CuO-Water based nanofluid in a pipe with return bend under laminar flow conditions has been done. The impacts of Reynolds number and the volume concentration of nanoparticles on the flow and the convective heat transfer behaviour are investigated. The results indicate that the increase in Reynolds number leads to the enhancement of average Nusselt number, and the increase in specific heat in the presence of the nanofluid results in improvement in heat transfer. Also, the presence of the secondary flow in the curve plays a key role in increasing the average Nusselt number and it appears higher than the inlet and outlet tubes. However, the pressure drop curve increases significantly in the tubes with the increase in nanoparticles concentration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=laminar%20forced%20convection" title="laminar forced convection">laminar forced convection</a>, <a href="https://publications.waset.org/abstracts/search?q=curve%20pipe" title=" curve pipe"> curve pipe</a>, <a href="https://publications.waset.org/abstracts/search?q=return%20bend" title=" return bend"> return bend</a>, <a href="https://publications.waset.org/abstracts/search?q=nanufluid" title=" nanufluid"> nanufluid</a>, <a href="https://publications.waset.org/abstracts/search?q=CFD" title=" CFD"> CFD</a> </p> <a href="https://publications.waset.org/abstracts/51028/numerical-study-of-developing-laminar-forced-convection-flow-of-watercuo-nanofluid-in-a-circular-tube-with-a-180-degrees-curve" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51028.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">297</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5389</span> Numerical Analysis of Laminar Mixed Convection within a Complex Geometry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Y.%20Lasbet">Y. Lasbet</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20L.%20Boukhalkhal"> A. L. Boukhalkhal</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Loubar"> K. Loubar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study of mixed convection is, usually, focused on the straight channels in which the onset of the mixed convection is well defined as function of the ratio between Grashof number and Reynolds number, Gr/Re. This is not the case for a complex channel wherein the mixed convection is not sufficiently examined in the literature. Our paper focuses on the study of the mixed convection in a complex geometry in which our main contribution reveals that the critical value of the ratio Gr/Re for the onset of the mixed convection increases highly in the type of geometry contrary to the straight channel. Furthermore, the accentuated secondary flow in this geometry prevents the thermal stratification in the flow and consequently the buoyancy driven becomes negligible. To perform these objectives, a numerical study in complex geometry for several values of the ratio Gr/Re with prescribed wall heat flux (H2), was realized by using the CFD code. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=complex%20geometry" title="complex geometry">complex geometry</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title=" heat transfer"> heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=laminar%20flow" title=" laminar flow"> laminar flow</a>, <a href="https://publications.waset.org/abstracts/search?q=mixed%20convection" title=" mixed convection"> mixed convection</a>, <a href="https://publications.waset.org/abstracts/search?q=Nusselt%20number" title=" Nusselt number"> Nusselt number</a> </p> <a href="https://publications.waset.org/abstracts/35925/numerical-analysis-of-laminar-mixed-convection-within-a-complex-geometry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35925.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">493</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5388</span> Second-Order Slip Flow and Heat Transfer in a Long Isothermal Microchannel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Huei%20Chu%20Weng">Huei Chu Weng</a>, <a href="https://publications.waset.org/abstracts/search?q=Chien-Hung%20Liu"> Chien-Hung Liu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a study on the effect of second-order slip and jump on forced convection through a long isothermally heated or cooled planar microchannel. The fully developed solutions of thermal flow fields are analytically obtained on the basis of the second-order Maxwell-Burnett slip and Smoluchowski jump boundary conditions. Results reveal that the second-order term in the Karniadakis slip boundary condition is found to contribute a negative velocity slip and then to lead to a higher pressure drop as well as a higher fluid temperature for the heated-wall case or to a lower fluid temperature for the cooled-wall case. These findings are contrary to predictions made by the Deissler model. In addition, the role of second-order slip becomes more significant when the Knudsen number increases. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microfluidics" title="microfluidics">microfluidics</a>, <a href="https://publications.waset.org/abstracts/search?q=forced%20convection" title=" forced convection"> forced convection</a>, <a href="https://publications.waset.org/abstracts/search?q=gas%20rarefaction" title=" gas rarefaction"> gas rarefaction</a>, <a href="https://publications.waset.org/abstracts/search?q=second-order%20boundary%20conditions" title=" second-order boundary conditions"> second-order boundary conditions</a> </p> <a href="https://publications.waset.org/abstracts/26201/second-order-slip-flow-and-heat-transfer-in-a-long-isothermal-microchannel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26201.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">450</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5387</span> Second-Order Slip Flow and Heat Transfer in a Long Isoflux Microchannel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Huei%20Chu%20Weng">Huei Chu Weng</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a study on the effect of second-order slip on forced convection through a long isoflux heated or cooled planar microchannel. The fully developed solutions of flow and thermal fields are analytically obtained on the basis of the second-order Maxwell-Burnett slip and local heat flux boundary conditions. Results reveal that when the average flow velocity increases or the wall heat flux amount decreases, the role of thermal creep becomes more insignificant, while the effect of second-order slip becomes larger. The second-order term in the Deissler slip boundary condition is found to contribute a positive velocity slip and then to lead to a lower pressure drop as well as a lower temperature rise for the heated-wall case or to a higher temperature rise for the cooled-wall case. These findings are contrary to predictions made by the Karniadakis slip model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microfluidics" title="microfluidics">microfluidics</a>, <a href="https://publications.waset.org/abstracts/search?q=forced%20convection" title=" forced convection"> forced convection</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20creep" title=" thermal creep"> thermal creep</a>, <a href="https://publications.waset.org/abstracts/search?q=second-order%20boundary%20conditions" title=" second-order boundary conditions"> second-order boundary conditions</a> </p> <a href="https://publications.waset.org/abstracts/7785/second-order-slip-flow-and-heat-transfer-in-a-long-isoflux-microchannel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7785.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">314</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5386</span> Heat Transfer Characteristics of Film Condensation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Mosaad">M. Mosaad</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20H.%20Almutairi"> J. H. Almutairi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20S.%20Almutairi"> A. S. Almutairi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, saturated-vapour film condensation on a vertical wall with the backside cooled by forced convection is analyzed as a conjugate problem. In the analysis, the temperature and heat flux at the wall sides are assumed unknown and determined from the solution. The model is presented in a dimensionless form to take a broad view of the solution. The dimensionless variables controlling this coupled heat transfer process are discovered from the analysis. These variables explain the relative impact of the interactive heat transfer mechanisms of forced convection and film condensation. The study shows that the conjugate treatment of film condensation process yields results different from that predicted by a non-conjugate Nusselt-type solution, wherein the effect of the cooling fluid is neglected. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=film%20condensation" title="film condensation">film condensation</a>, <a href="https://publications.waset.org/abstracts/search?q=forced%20convection" title=" forced convection"> forced convection</a>, <a href="https://publications.waset.org/abstracts/search?q=coupled%20heat%20transfer" title=" coupled heat transfer"> coupled heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=analytical%20modelling" title=" analytical modelling"> analytical modelling</a> </p> <a href="https://publications.waset.org/abstracts/67440/heat-transfer-characteristics-of-film-condensation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/67440.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">321</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5385</span> CFD Studies on Forced Convection Nanofluid Flow Inside a Circular Conduit</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Khalid">M. Khalid</a>, <a href="https://publications.waset.org/abstracts/search?q=W.%20Rashmi"> W. Rashmi</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20L.%20Kwan"> L. L. Kwan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work provides an overview on the experimental and numerical simulations of various nanofluids and their flow and heat transfer behavior. It was further extended to study the effect of nanoparticle concentration, fluid flow rates and thermo-physical properties on the heat transfer enhancement of Al2O3/water nanofluid in a turbulent flow circular conduit using ANSYS FLUENT™ 14.0. Single-phase approximation (homogeneous model) and two-phase (mixture and Eulerian) models were used to simulate the nanofluid flow behavior in the 3-D horizontal pipe. The numerical results were further validated with experimental correlations reported in the literature. It was found that heat transfer of nanofluids increases with increasing particle volume concentration and Reynolds number, respectively. Results showed good agreement (~9% deviation) with the experimental correlations, especially for a single-phase model with constant properties. Among two-phase models, mixture model (~14% deviation) showed better prediction compared to Eulerian-dispersed model (~18% deviation) when temperature independent properties were used. Non-drag forces were also employed in the Eulerian two-phase model. However, the two-phase mixture model with temperature dependent nanofluid properties gave slightly closer agreement (~12% deviation). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanofluid" title="nanofluid">nanofluid</a>, <a href="https://publications.waset.org/abstracts/search?q=CFD" title=" CFD"> CFD</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title=" heat transfer"> heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=forced%20convection" title=" forced convection"> forced convection</a>, <a href="https://publications.waset.org/abstracts/search?q=circular%20conduit" title=" circular conduit"> circular conduit</a> </p> <a href="https://publications.waset.org/abstracts/13358/cfd-studies-on-forced-convection-nanofluid-flow-inside-a-circular-conduit" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13358.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">523</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5384</span> Mixed Convection Heat Transfer of Copper Oxide-Heat Transfer Oil Nanofluid in Vertical Tube</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Hekmatipour">Farhad Hekmatipour</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20A.%20Akhavan-Behabadi"> M. A. Akhavan-Behabadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Farzad%20Hekmatipour"> Farzad Hekmatipour</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, experiments were conducted to investigate the heat transfer of Copper Oxide-Heat Transfer Oil (CuO-HTO) nanofluid laminar flow in vertical smooth and microfin tubes as the surface temperature is constant. The effect of adding the nanoparticle to base fluid and Richardson number on the heat transfer enhancement is investigated as Richardson number increases from 0.1 to 0.7. The experimental results demonstrate that the combined forced-natural convection heat transfer rate may be improved significantly with an increment of mass nanoparticle concentration from 0% to 1.5%. In this experiment, a correlation is also proposed to predict the mixed convection heat transfer rate of CuO-HTO nanofluid flow. The maximum deviation of both correlations is less than 14%. Moreover, a correlation is presented to estimate the Nusselt number inside vertical smooth and microfin tubes as Rayleigh number is between 2´105 and 6.8´106 with the maximum deviation of 12%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mixed%20convection" title="mixed convection">mixed convection</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title=" heat transfer"> heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=nanofluid" title=" nanofluid"> nanofluid</a>, <a href="https://publications.waset.org/abstracts/search?q=vertical%20tube" title=" vertical tube"> vertical tube</a>, <a href="https://publications.waset.org/abstracts/search?q=microfin%20tube" title=" microfin tube"> microfin tube</a> </p> <a href="https://publications.waset.org/abstracts/82101/mixed-convection-heat-transfer-of-copper-oxide-heat-transfer-oil-nanofluid-in-vertical-tube" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82101.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">380</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5383</span> Determination of Forced Convection Heat Transfer Performance in Lattice Geometric Heat Sinks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bayram%20Sahin">Bayram Sahin</a>, <a href="https://publications.waset.org/abstracts/search?q=Baris%20Gezdirici"> Baris Gezdirici</a>, <a href="https://publications.waset.org/abstracts/search?q=Murat%20Ceylan"> Murat Ceylan</a>, <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20Ates"> Ibrahim Ates</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this experimental study, the effects of heat transfer and flow characteristics on lattice geometric heat sinks, where high rates of heat removal are required, were investigated. The design parameters were Reynolds number, the height of heat sink (H), horizontal (Sy) and vertical (Sx) distances between heat sinks. In the experiments, the Reynolds number ranged from 4000 to 20000; heat sink heights were (H) 20 mm and 40 mm; the distances (Sy) between the heat sinks in the flow direction were45 mm, 32 mm, 23.3 mm; the distances (Sx) between the heat sinks perpendicular to the flow direction were selected to be 23.3 mm, 12.5 mm and 6 mm. A total of 90 experiments were conducted and the maximum Nusselt number and minimum friction coefficient were targeted. Experimental results have shown that heat sinks in lattice geometry have a significant effect on heat transfer enhancement. Under the different experimental conditions, the highest increase in Nusselt number was 283% while the lowest increase was calculated as 66% as compared with the straight channel results. The lowest increase in the friction factor was also obtained as 173% according to the straight channel results. It is seen that the increase in heat sink height and flow velocity increased the level of turbulence in the channel, leading to higher Nusselt number and friction factor values. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=forced%20convection" title="forced convection">forced convection</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer%20enhancement" title=" heat transfer enhancement"> heat transfer enhancement</a>, <a href="https://publications.waset.org/abstracts/search?q=lattice%20geometric%20heat%20sinks" title=" lattice geometric heat sinks"> lattice geometric heat sinks</a>, <a href="https://publications.waset.org/abstracts/search?q=pressure%20drop" title=" pressure drop"> pressure drop</a> </p> <a href="https://publications.waset.org/abstracts/90453/determination-of-forced-convection-heat-transfer-performance-in-lattice-geometric-heat-sinks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/90453.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">190</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5382</span> Dual Solutions in Mixed Convection Boundary Layer Flow: A Stability Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Anuar%20Ishak">Anuar Ishak</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The mixed convection stagnation point flow toward a vertical plate is investigated. The external flow impinges normal to the heated plate and the surface temperature is assumed to vary linearly with the distance from the stagnation point. The governing partial differential equations are transformed into a set of ordinary differential equations, which are then solved numerically using MATLAB routine boundary value problem solver bvp4c. Numerical results show that dual solutions are possible for a certain range of the mixed convection parameter. A stability analysis is performed to determine which solution is linearly stable and physically realizable. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dual%20solutions" title="dual solutions">dual solutions</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title=" heat transfer"> heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=mixed%20convection" title=" mixed convection"> mixed convection</a>, <a href="https://publications.waset.org/abstracts/search?q=stability%20analysis" title=" stability analysis"> stability analysis</a> </p> <a href="https://publications.waset.org/abstracts/7618/dual-solutions-in-mixed-convection-boundary-layer-flow-a-stability-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7618.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">390</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5381</span> Prediction of Unsteady Heat Transfer over Square Cylinder in the Presence of Nanofluid by Using ANN</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ajoy%20Kumar%20Das">Ajoy Kumar Das</a>, <a href="https://publications.waset.org/abstracts/search?q=Prasenjit%20Dey"> Prasenjit Dey</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Heat transfer due to forced convection of copper water based nanofluid has been predicted by Artificial Neural network (ANN). The present nanofluid is formed by mixing copper nano particles in water and the volume fractions are considered here are 0% to 15% and the Reynolds number are kept constant at 100. The back propagation algorithm is used to train the network. The present ANN is trained by the input and output data which has been obtained from the numerical simulation, performed in finite volume based Computational Fluid Dynamics (CFD) commercial software Ansys Fluent. The numerical simulation based results are compared with the back propagation based ANN results. It is found that the forced convection heat transfer of water based nanofluid can be predicted correctly by ANN. It is also observed that the back propagation ANN can predict the heat transfer characteristics of nanofluid very quickly compared to standard CFD method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=forced%20convection" title="forced convection">forced convection</a>, <a href="https://publications.waset.org/abstracts/search?q=square%20cylinder" title=" square cylinder"> square cylinder</a>, <a href="https://publications.waset.org/abstracts/search?q=nanofluid" title=" nanofluid"> nanofluid</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20network" title=" neural network "> neural network </a> </p> <a href="https://publications.waset.org/abstracts/26172/prediction-of-unsteady-heat-transfer-over-square-cylinder-in-the-presence-of-nanofluid-by-using-ann" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26172.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">320</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5380</span> Thermomagnetic Convection of a Ferrofluid in a Non-Uniform Magnetic Field Induced a Current Carrying Wire</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ashkan%20Vatani">Ashkan Vatani</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Woodfield"> Peter Woodfield</a>, <a href="https://publications.waset.org/abstracts/search?q=Nam-Trung%20Nguyen"> Nam-Trung Nguyen</a>, <a href="https://publications.waset.org/abstracts/search?q=Dzung%20Dao"> Dzung Dao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Thermomagnetic convection of a ferrofluid flow induced by the non-uniform magnetic field around a current-carrying wire was theoretically analyzed and experimentally tested. To show this phenomenon, the temperature rise of a hot wire, immersed in DIW and Ferrofluid, as a result of joule heating has been measured using a transient hot-wire technique. When current is applied to the wire, a temperature gradient is imposed on the magnetic fluid resulting in non-uniform magnetic susceptibility of the ferrofluid that results in a non-uniform magnetic body force which makes the ferrofluid flow as a bulk suspension. For the case of the wire immersed in DIW, free convection is the only means of cooling, while for the case of ferrofluid a combination of both free convection and thermomagnetic convection is expected to enhance the heat transfer from the wire beyond that of DIW. Experimental results at different temperatures and for a range of constant currents applied to the wire show that thermomagnetic convection becomes effective for the currents higher than 1.5A at all temperatures. It is observed that the onset of thermomagnetic convection is directly proportional to the current applied to the wire and that the thermomagnetic convection happens much faster than the free convection. Calculations show that a 35% enhancement in heat transfer can be expected for the ferrofluid compared to DIW, for a 3A current applied to the wire. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cooling" title="cooling">cooling</a>, <a href="https://publications.waset.org/abstracts/search?q=ferrofluid" title=" ferrofluid"> ferrofluid</a>, <a href="https://publications.waset.org/abstracts/search?q=thermomagnetic%20convection" title=" thermomagnetic convection"> thermomagnetic convection</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20field" title=" magnetic field"> magnetic field</a> </p> <a href="https://publications.waset.org/abstracts/62634/thermomagnetic-convection-of-a-ferrofluid-in-a-non-uniform-magnetic-field-induced-a-current-carrying-wire" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62634.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">263</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5379</span> Analysis of Force Convection in Bandung Triga Reactor Core Plate Types Fueled Using Coolod-N2</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20A.%20Sudjatmi">K. A. Sudjatmi</a>, <a href="https://publications.waset.org/abstracts/search?q=Endiah%20Puji%20Hastuti"> Endiah Puji Hastuti</a>, <a href="https://publications.waset.org/abstracts/search?q=Surip%20Widodo"> Surip Widodo</a>, <a href="https://publications.waset.org/abstracts/search?q=Reinaldy%20Nazar"> Reinaldy Nazar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Any pretensions to stop the production of TRIGA fuel elements by TRIGA reactor fuel elements manufacturer should be anticipated by the operating agency of TRIGA reactor to replace the cylinder type fuel element with plate type fuel element, that available on the market. This away was performed the calculation on U3Si2Al fuel with uranium enrichment of 19.75% and a load level of 2.96 gU/cm3. Maximum power that can be operated on free convection cooling mode at the BANDUNG TRIGA reactor fuel plate was 600 kW. This study has been conducted thermalhydraulic characteristic calculation model of the reactor core power 2MW. BANDUNG TRIGA reactor core fueled plate type is composed of 16 fuel elements, 4 control elements and one irradiation facility which is located right in the middle of the core. The reactor core is cooled using a pump which is already available with flow rate 900 gpm. Analysis on forced convection cooling mode with flow from the top down from 10%, 20%, 30% and so on up to a 100% rate of coolant flow. performed using the COOLOD-N2 code. The calculations result showed that the 2 MW power with inlet coolant temperature at 37 °C and cooling rate percentage of 50%, then the coolant temperature, maximum cladding and meat respectively 64.96 oC, 124.81 oC, and 125.08 oC, DNBR (departure from nucleate boiling ratio)=1.23 and OFIR (onset of flow instability ratio)=1:00. The results are expected to be used as a reference for determining the power and cooling rate level of the BANDUNG TRIGA reactor core plate types fueled. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=TRIGA" title="TRIGA">TRIGA</a>, <a href="https://publications.waset.org/abstracts/search?q=COOLOD-N2" title=" COOLOD-N2"> COOLOD-N2</a>, <a href="https://publications.waset.org/abstracts/search?q=plate%20type%20fuel%20element" title=" plate type fuel element"> plate type fuel element</a>, <a href="https://publications.waset.org/abstracts/search?q=force%20convection" title=" force convection"> force convection</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20hydraulic%20characteristic" title=" thermal hydraulic characteristic"> thermal hydraulic characteristic</a> </p> <a href="https://publications.waset.org/abstracts/43535/analysis-of-force-convection-in-bandung-triga-reactor-core-plate-types-fueled-using-coolod-n2" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43535.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">300</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5378</span> Unsteady Flow and Heat Transfer of Nanofluid from Circular Tube in Cross-Flow</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20Bayat">H. Bayat</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Majidi"> M. Majidi</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Bolhasani"> M. Bolhasani</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Karbalaie%20Alilou"> A. Karbalaie Alilou</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Mirabdolah%20Lavasani"> A. Mirabdolah Lavasani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Unsteady flow and heat transfer from a circular cylinder in cross-flow is studied numerically. The governing equations are solved by using finite volume method. Reynolds number varies in range of 50 to 200, in this range flow is considered to be laminar and unsteady. Al2O3 nanoparticle with volume fraction in range of 5% to 20% is added to pure water. Effects of adding nanoparticle to pure water on lift and drag coefficient and Nusselt number is presented. Addition of Al2O3 has inconsiderable effect on the value of drags and lift coefficient. However, it has significant effect on heat transfer; results show that heat transfer of Al2O3 nanofluid is about 9% to 36% higher than pure water. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanofluid" title="nanofluid">nanofluid</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title=" heat transfer"> heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=unsteady%20flow" title=" unsteady flow"> unsteady flow</a>, <a href="https://publications.waset.org/abstracts/search?q=forced%20convection" title=" forced convection"> forced convection</a>, <a href="https://publications.waset.org/abstracts/search?q=cross-flow" title=" cross-flow"> cross-flow</a> </p> <a href="https://publications.waset.org/abstracts/42064/unsteady-flow-and-heat-transfer-of-nanofluid-from-circular-tube-in-cross-flow" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/42064.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">397</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5377</span> Effect of Flow Holes on Heat Release Performance of Extruded-Type Heat Sink</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jung%20Hyun%20Kim">Jung Hyun Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Gyo%20Woo%20Lee"> Gyo Woo Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the enhancement of the heat release performance of an extruded-type heat sink to prepare the large-capacity solar inverter thru the flow holes in the base plate near the heat sources was investigated. Optimal location and number of the holes in the baseplate were determined by using a commercial computation program. The heat release performance of the shape-modified heat sink was measured experimentally and compared with that of the simulation. The heat sink with 12 flow holes in the 18-mm-thick base plate has a 8.1% wider heat transfer area, a 2.5% more mass flow of air, and a 2.7% higher heat release rate than those of the original heat sink. Also, the surface temperature of the base plate was lowered 1.5°C by the holes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heat%20sink" title="heat sink">heat sink</a>, <a href="https://publications.waset.org/abstracts/search?q=forced%20convection" title=" forced convection"> forced convection</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title=" heat transfer"> heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=performance%20evaluation" title=" performance evaluation"> performance evaluation</a>, <a href="https://publications.waset.org/abstracts/search?q=flow%20holes" title=" flow holes"> flow holes</a> </p> <a href="https://publications.waset.org/abstracts/8516/effect-of-flow-holes-on-heat-release-performance-of-extruded-type-heat-sink" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8516.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">533</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5376</span> Drying of Agro-Industrial Wastes Using an Indirect Solar Dryer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Metidji">N. Metidji</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Kasbadji%20Merzouk"> N. Kasbadji Merzouk</a>, <a href="https://publications.waset.org/abstracts/search?q=O.%20Badaoui"> O. Badaoui</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Sellami"> R. Sellami</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Djebli"> A. Djebli</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Agro-industry is considered as one of the most waste producing industrial fields as a result of food processing. Upgrading and reuse of these wastes as animal or poultry food seems to be a promising alternative. Combined with the use of clean energy resources, the recovery process would contribute more to the environment protection. It is in this framework that a new solar dryer has been designed in the Unit of Solar Equipments Development. Indirect solar drying has, also, many advantages compared to natural sun drying. In fact, the first does not cause product degradation as it is protected by the drying chamber from direct sun, insects and exterior environment. The aim of this work is to study the drying kinetics of waste, generated during the processing of orange to make fruit juice, by using an indirect forced convection solar dryer at 50 °C and 60 °C, the rate of moisture removal from the product to be dried has been found to be directly related to temperature, humidity and flow rate. The characterization of these parameters has allowed the determination of the appropriate drying time for this product namely orange waste. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solar%20energy" title="solar energy">solar energy</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20dryer" title=" solar dryer"> solar dryer</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20conversion" title=" energy conversion"> energy conversion</a>, <a href="https://publications.waset.org/abstracts/search?q=orange%20drying" title=" orange drying"> orange drying</a>, <a href="https://publications.waset.org/abstracts/search?q=forced%20convection%20solar%20dryer" title=" forced convection solar dryer"> forced convection solar dryer</a> </p> <a href="https://publications.waset.org/abstracts/5221/drying-of-agro-industrial-wastes-using-an-indirect-solar-dryer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/5221.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">354</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5375</span> Study of Large-Scale Atmospheric Convection over the Tropical Indian Ocean and Its Association with Oceanic Variables</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Supriya%20Manikrao%20Ovhal">Supriya Manikrao Ovhal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In India, the summer monsoon rainfall occurs owing to large scale convection with reference to continental ITCZ. It was found that convection over tropical ocean increases with SST from 26 to 28 degree C, and when SST is above 29 degree C, it sharply decreases for warm pool areas of Indian and for monsoon areas of West Pacific Ocean. The reduction in convection can be influenced by large scale subsidence forced by nearby or remotely generated deep convection, thus it was observed that under the influence of strong large scale rising motion, convection does not decreases but increases monotonically with SST even if SST value is higher than 29.5 degree C. Since convection is related to SST gradient, that helps to generate low level moisture convergence and upward vertical motion in the atmosphere. Strong wind fields like cross equatorial low level jet stream on equator ward side of the warm pool are produced due to convection initiated by SST gradient. Areas having maximum SST have low SST gradient, and that result in feeble convection. Hence it is imperative to mention that the oceanic role (other than SST) could be prominent in influencing large Scale Atmospheric convection. Since warm oceanic surface somewhere or the other contributes to penetrate the heat radiation to the subsurface of the ocean, and as there is no studies seen related to oceanic subsurface role in large Scale Atmospheric convection, in the present study, we are concentrating on the oceanic subsurface contribution in large Scale Atmospheric convection by considering the SST gradient, mixed layer depth (MLD), thermocline, barrier layer. The present study examines the probable role of subsurface ocean parameters in influencing convection. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sst" title="sst">sst</a>, <a href="https://publications.waset.org/abstracts/search?q=d20" title=" d20"> d20</a>, <a href="https://publications.waset.org/abstracts/search?q=olr" title=" olr"> olr</a>, <a href="https://publications.waset.org/abstracts/search?q=wind" title=" wind"> wind</a> </p> <a href="https://publications.waset.org/abstracts/156972/study-of-large-scale-atmospheric-convection-over-the-tropical-indian-ocean-and-its-association-with-oceanic-variables" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156972.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">93</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5374</span> The Effect of Cooling Tower Fan on the Performance of the Chiller Plant</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ankitsinh%20Chauhan">Ankitsinh Chauhan</a>, <a href="https://publications.waset.org/abstracts/search?q=Vimal%20Patel"> Vimal Patel</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20D.%20Parekh"> A. D. Parekh</a>, <a href="https://publications.waset.org/abstracts/search?q=Ishant%20patil"> Ishant patil</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study delves into the crucial influence of cooling tower fan operation on the performance of a chiller plant, with a specific focus on the Chiller Plant at SVNIT. Continuous operation of the chiller plant led to unexpected damage to the cooling tower's belt drive, rendering the cooling tower fan non-operational. Consequently, the efficiency of heat transfer in the condenser was significantly impaired. In response, we analyzed and calculated several vital parameters, including the Coefficient of Performance (COP), heat rejection in the condenser (Qc), work required for the compressor (Wc), and heat absorbed by the refrigerant in the evaporator (Qe). Our findings revealed that in the absence of the cooling tower fan, relying solely on natural convection, the COP of the chiller plant reached a minimum value of 5.49. However, after implementing a belt drive to facilitate forced convection for the cooling tower fan, the COP of the chiller plant experienced a noteworthy improvement, reaching approximately 6.27. Additionally, the utilization of forced convection resulted in an impressive reduction of 8.9% in compressor work, signifying enhanced energy efficiency. This study underscores the critical role of cooling tower fan operation in optimizing chiller plant performance, with practical implications for energy-efficient HVAC systems. It highlights the potential benefits of employing forced convection mechanisms, such as belt drives, to ensure efficient heat transfer in the condenser, ultimately contributing to improved energy utilization and reduced operational costs in cooling. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cooling%20tower" title="cooling tower">cooling tower</a>, <a href="https://publications.waset.org/abstracts/search?q=chiller%20Plant" title=" chiller Plant"> chiller Plant</a>, <a href="https://publications.waset.org/abstracts/search?q=cooling%20tower%20fan" title=" cooling tower fan"> cooling tower fan</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20efficiency" title=" energy efficiency"> energy efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=VCRS." title=" VCRS."> VCRS.</a> </p> <a href="https://publications.waset.org/abstracts/186647/the-effect-of-cooling-tower-fan-on-the-performance-of-the-chiller-plant" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/186647.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">40</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5373</span> Effect of Rotation Rate on Chemical Segregation during Phase Change</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nouri%20Sabrina">Nouri Sabrina</a>, <a href="https://publications.waset.org/abstracts/search?q=Benzeghiba%20Mohamed"> Benzeghiba Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghezal%20Abderrahmane"> Ghezal Abderrahmane</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Numerical parametric study is conducted to study the effects of ampoule rotation on the flows and the dopant segregation in vertical Bridgman (VB) crystal growth. Calculations were performed in unsteady state. The extended Darcy model, which includes the time derivative and Coriolis terms, has been employed in the momentum equation. It was found that the convection, and dopant segregation can be affected significantly by ampoule rotation, and the effect is similar to that by an axial magnetic field. Ampoule rotation decreases the intensity of convection and stretches the flow cell axially. When the convection is weak, the flow can be suppressed almost completely by moderate ampoule rotation and the dopant segregation becomes diffusion-controlled. For stronger convection, the elongated flow cell by ampoule rotation may bring dopant mixing into the bulk melt reducing axial segregation at the early stage of the growth. However, if the cellular flow cannot be suppressed completely, ampoule rotation may induce larger radial segregation due to poor mixing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=numerical%20simulation" title="numerical simulation">numerical simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20and%20mass%20transfer" title=" heat and mass transfer"> heat and mass transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=vertical%20solidification" title=" vertical solidification"> vertical solidification</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20segregation" title=" chemical segregation"> chemical segregation</a> </p> <a href="https://publications.waset.org/abstracts/2098/effect-of-rotation-rate-on-chemical-segregation-during-phase-change" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2098.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">348</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5372</span> Numerical Study of Laminar Mixed Convection Heat Transfer of a Nanofluid in a Concentric Annular Tube Using Two-Phase Mixture Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Roghayyeh%20Motallebzadeh">Roghayyeh Motallebzadeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Shahin%20Hajizadeh"> Shahin Hajizadeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Reza%20Ghasemi"> Mohammad Reza Ghasemi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Laminar mixed convection heat transfer of a nanofluid with prescribed constant heat flux on the inner wall of horizontal annular tube has been studied numerically based on two-phase mixture model in different Rayleigh numbers and Azimuth angles. Effects of applying of different volume fractions of Al2O3 nanoparticles in water as a base fluid on hydrodynamic and thermal behaviours of the fluid flow such as axial velocity, secondary flow, temperature, heat transfer coefficient and friction coefficient at the inner and outer wall region, has been investigated. Conservation equations in elliptical form has been utilized and solved in three dimensions for a steady flow. It is observed that, there is a good agreement between results in this work and previously published experimental and numerical works on mixed convection in horizontal annulus. These particles cause to increase convection heat transfer coefficient of the fluid, meanwhile there is no considerable effect on friction coefficient. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=buoyancy%20force" title="buoyancy force">buoyancy force</a>, <a href="https://publications.waset.org/abstracts/search?q=laminar%20mixed%20convection" title=" laminar mixed convection"> laminar mixed convection</a>, <a href="https://publications.waset.org/abstracts/search?q=mixture%20model" title=" mixture model"> mixture model</a>, <a href="https://publications.waset.org/abstracts/search?q=nano-fluid" title=" nano-fluid"> nano-fluid</a>, <a href="https://publications.waset.org/abstracts/search?q=two-phase" title=" two-phase"> two-phase</a> </p> <a href="https://publications.waset.org/abstracts/6099/numerical-study-of-laminar-mixed-convection-heat-transfer-of-a-nanofluid-in-a-concentric-annular-tube-using-two-phase-mixture-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6099.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">469</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5371</span> Numerical Analysis of Multiplicity and Transition Phenomena in Natural Convection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hadi%20Kafil">Hadi Kafil</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Ecder"> Ali Ecder</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Heat transfer by natural convection in two-dimensional and three-dimensional axisymmetric enclosure fitted with partially heated vertical walls is investigated numerically. The range of Rayleigh number is varied from 10³ until convective flow becomes unstable. This research focuses on multiplicity and transition phenomena in natural convection and is based on a parametric analysis to study the onset of bifurcations. It is found that, even at low Rayleigh numbers, the flow undergoes a series of turning-point bifurcations which increase the rate of natural convention. On the other hand, by partially heating or cooling the walls, more effective results can be achieved for both heating and cooling applications, such as cooling of electronic devices and heating processes in solidification and crystal growth. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=natural%20convection" title="natural convection">natural convection</a>, <a href="https://publications.waset.org/abstracts/search?q=partial%20heated" title=" partial heated"> partial heated</a>, <a href="https://publications.waset.org/abstracts/search?q=onset%20of%20bifurcation" title=" onset of bifurcation"> onset of bifurcation</a>, <a href="https://publications.waset.org/abstracts/search?q=Rayleigh%20number" title=" Rayleigh number"> Rayleigh number</a> </p> <a href="https://publications.waset.org/abstracts/11789/numerical-analysis-of-multiplicity-and-transition-phenomena-in-natural-convection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11789.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">370</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5370</span> Turbulent Forced Convection of Cu-Water Nanofluid: CFD Models Comparison</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=I.%20Behroyan">I. Behroyan</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Ganesan"> P. Ganesan</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20He"> S. He</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Sivasankaran"> S. Sivasankaran</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study compares the predictions of five types of Computational Fluid Dynamics (CFD) models, including two single-phase models (i.e. Newtonian and non-Newtonian) and three two-phase models (Eulerian-Eulerian, mixture and Eulerian-Lagrangian), to investigate turbulent forced convection of Cu-water nanofluid in a tube with a constant heat flux on the tube wall. The Reynolds (Re) number of the flow is between 10,000 and 25,000, while the volume fraction of Cu particles used is in the range of 0 to 2%. The commercial CFD package of ANSYS-Fluent is used. The results from the CFD models are compared with results from experimental investigations from literature. According to the results of this study, non-Newtonian single-phase model, in general, does not show a good agreement with Xuan and Li correlation in prediction of Nu number. Eulerian-Eulerian model gives inaccurate results expect for φ=0.5%. Mixture model gives a maximum error of 15%. Newtonian single-phase model and Eulerian-Lagrangian model, in overall, are the recommended models. This work can be used as a reference for selecting an appreciate model for future investigation. The study also gives a proper insight about the important factors such as Brownian motion, fluid behavior parameters and effective nanoparticle conductivity which should be considered or changed by the each model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title="heat transfer">heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=nanofluid" title=" nanofluid"> nanofluid</a>, <a href="https://publications.waset.org/abstracts/search?q=single-phase%20models" title=" single-phase models"> single-phase models</a>, <a href="https://publications.waset.org/abstracts/search?q=two-phase%20models" title=" two-phase models"> two-phase models</a> </p> <a href="https://publications.waset.org/abstracts/13910/turbulent-forced-convection-of-cu-water-nanofluid-cfd-models-comparison" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13910.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">484</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5369</span> Experimental and Numerical Study of the Thermomagnetic Convection of Ferrofluid Driven by Non-Uniform Magnetic Field around a Current-Carrying Wire</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ashkan%20Vatani">Ashkan Vatani</a>, <a href="https://publications.waset.org/abstracts/search?q=Petere%20Woodfiel"> Petere Woodfiel</a>, <a href="https://publications.waset.org/abstracts/search?q=Nam-Trung%20Nguyen"> Nam-Trung Nguyen</a>, <a href="https://publications.waset.org/abstracts/search?q=Dzung%20Dao"> Dzung Dao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Thermomagnetic convection of a ferrofluid flow induced by the non-uniform magnetic field around a current-carrying wire was theoretically analyzed, numerically studied and experimentally validated. The dependency of the thermomagnetic convection on the current and fluid temperature has been studied. The Nusselt number for a heated 50um diameter wire in the ferrofluid exponentially scales with applied current to the micro-wire. This result is in good agreement with the correlated Nusselt number by curve-fitting the experimental data at different fluid temperatures. It was shown that at low currents, no significance is observed for thermomagnetic convection rather than the buoyancy-driven convection, while the thermomagnetic convection becomes dominant at high currents. Also, numerical simulations showed a promising cooling ability for large scale applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ferrofluid" title="ferrofluid">ferrofluid</a>, <a href="https://publications.waset.org/abstracts/search?q=non-uniform%20magnetic%20field" title=" non-uniform magnetic field"> non-uniform magnetic field</a>, <a href="https://publications.waset.org/abstracts/search?q=Nusselt%20number" title=" Nusselt number"> Nusselt number</a>, <a href="https://publications.waset.org/abstracts/search?q=thermomagnetic%20convection" title=" thermomagnetic convection"> thermomagnetic convection</a> </p> <a href="https://publications.waset.org/abstracts/59200/experimental-and-numerical-study-of-the-thermomagnetic-convection-of-ferrofluid-driven-by-non-uniform-magnetic-field-around-a-current-carrying-wire" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/59200.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">248</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5368</span> Peristaltic Transport of a Jeffrey Fluid with Double-Diffusive Convection in Nanofluids in the Presence of Inclined Magnetic Field</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safia%20Akram">Safia Akram</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this article, the effects of peristaltic transport with double-diffusive convection in nanofluids through an asymmetric channel with different waveforms is presented. Mathematical modelling for two-dimensional and two directional flows of a Jeffrey fluid model along with double-diffusive convection in nanofluids are given. Exact solutions are obtained for nanoparticle fraction field, concentration field, temperature field, stream functions, pressure gradient and pressure rise in terms of axial and transverse coordinates under the restrictions of long wavelength and low Reynolds number. With the help of computational and graphical results the effects of Brownian motion, thermophoresis, Dufour, Soret, and Grashof numbers (thermal, concentration, nanoparticles) on peristaltic flow patterns with double-diffusive convection are discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanofluid%20particles" title="nanofluid particles">nanofluid particles</a>, <a href="https://publications.waset.org/abstracts/search?q=peristaltic%20flow" title=" peristaltic flow"> peristaltic flow</a>, <a href="https://publications.waset.org/abstracts/search?q=Jeffrey%20fluid" title=" Jeffrey fluid"> Jeffrey fluid</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20field" title=" magnetic field"> magnetic field</a>, <a href="https://publications.waset.org/abstracts/search?q=asymmetric%20channel" title=" asymmetric channel"> asymmetric channel</a>, <a href="https://publications.waset.org/abstracts/search?q=different%20waveforms" title=" different waveforms"> different waveforms</a> </p> <a href="https://publications.waset.org/abstracts/71169/peristaltic-transport-of-a-jeffrey-fluid-with-double-diffusive-convection-in-nanofluids-in-the-presence-of-inclined-magnetic-field" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71169.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">381</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5367</span> Experimental Study of Heat Transfer Enhancement Using Protruded Rectangular Fin</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tarique%20Jamil%20Khan">Tarique Jamil Khan</a>, <a href="https://publications.waset.org/abstracts/search?q=Swapnil%20Pande"> Swapnil Pande</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The investigation deals with the study of heat transfer enhancement using protruded square fin. This study is enough to determine whether protrusion in forced convection is enough to enhance the rate of heat transfer. It includes the results after performing experiments by using a plane rectangular fin of aluminum material and the same dimension rectangular fin of the same material but having protruded circular shape extended normally. The fins made by a sand casting method. The results clearly mentioned that the protruded surface is effective enough to enhance the rate of heat transfer. This research investigates a modern fin topologies heat transfer characteristics that will clearly outdated the conventional fin to increase the rate of heat transfer. Protruded fins improve the rate of heat transfer compared to solid fin by varying shape of the protrusion in diameter and height. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer%20enhancement" title="heat transfer enhancement">heat transfer enhancement</a>, <a href="https://publications.waset.org/abstracts/search?q=forced%20convection" title=" forced convection"> forced convection</a>, <a href="https://publications.waset.org/abstracts/search?q=protruted%20fin" title=" protruted fin"> protruted fin</a>, <a href="https://publications.waset.org/abstracts/search?q=rectangular%20fin" title=" rectangular fin"> rectangular fin</a> </p> <a href="https://publications.waset.org/abstracts/56370/experimental-study-of-heat-transfer-enhancement-using-protruded-rectangular-fin" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56370.pdf" target="_blank" class="btn btn-primary 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