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multiple Rushton turbines (Vasconcelos et al., 1995) was verified for the additional scales of 0.39,0.56 and 0.72 m vessel diameter. It is now shown that the single adjusted parameter previously required by the model, the air-induced axial velocity parameter v,,, is scale-independent with an invariant value of 7 x m/s. Model simulations, with tank and turbine diameters and the number of stages as the only required parameters, deviate 5% on average from the experimentally determined mixing time The model is thus a valuable tool for scale-up of this type of vessels. Un modkle de mClange mis au point antkrieurement pour la dktermination du temps de mClange dans des rCservoirs en milieu aCrC agitCs par des turbines de Rushton multiples (Vasconselos et al., 1995), a Ctt vkrifiC pour de nouvelles Cchelles de diamktre de rkservoir de 0,39,0,56 et 0,72 m. I1 est maintenant montrC que le paramktre d'ajustement unique auparavant exigC par le modkle, soit le paramktre de vitesse axiale induite par l'air vp, est un invariant de 1'Cchelle dont la valeur est 7 x m/s. Des simulations utilisant comme paramktres uniques les diamktres de rkservoirs et de turbines et le nombre de phases, donnent des dCviations de 5% par rapport au temps de mClange to,os determink expCrimentalement. Le modkle est donc un outil valable pour la mise B I'Cchelle de ce type de rkservoirs.","publication_date":"1998,,","publication_name":"The Canadian Journal of Chemical Engineering","grobid_abstract_attachment_id":"106743433"},"document_type":"paper","pre_hit_view_count_baseline":null,"quality":"high","language":"en","title":"Scale-up of mixing in gassed multi-turbine agitated vessels","broadcastable":true,"draft":null,"has_indexable_attachment":true,"indexable":true}}["work"]; window.loswp.workCoauthors = [275545970]; window.loswp.locale = "en"; window.loswp.countryCode = "SG"; window.loswp.cwvAbTestBucket = ""; window.loswp.designVariant = "ds_vanilla"; window.loswp.fullPageMobileSutdModalVariant = "control"; window.loswp.useOptimizedScribd4genScript = false; window.loswp.appleClientId = 'edu.academia.applesignon';</script><script defer="" src="https://accounts.google.com/gsi/client"></script><div class="ds-loswp-container"><div class="ds-work-card--grid-container"><div 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Jauregui-Haza</a><span>, </span><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="50999766" href="https://independent.academia.edu/PatriciaTaillandier">Patricia Taillandier</a></div><p class="ds-related-work--metadata ds2-5-body-xs">International Journal of Chemical Reactor Engineering, 2000</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Flow Induced by Dual-Turbine of Different Diameters in a Gas-Liquid Agitation System: the Agitation and Turbulence Indices","attachmentId":47240082,"attachmentType":"pdf","work_url":"https://www.academia.edu/26977678/Flow_Induced_by_Dual_Turbine_of_Different_Diameters_in_a_Gas_Liquid_Agitation_System_the_Agitation_and_Turbulence_Indices","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/26977678/Flow_Induced_by_Dual_Turbine_of_Different_Diameters_in_a_Gas_Liquid_Agitation_System_the_Agitation_and_Turbulence_Indices"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="5" data-entity-id="29783080" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/29783080/REACTOR_and_PROCESS_TECHNOLOGY_Modeling_Turbulent_Flow_in_a_Mixing_Tank_TURBULENT_FLOW_IN_A_MIXING_TANK_2">REACTOR & PROCESS TECHNOLOGY Modeling Turbulent Flow in a Mixing Tank TURBULENT FLOW IN A MIXING TANK 2</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="22658377" href="https://acadamia.academia.edu/BaruDebtera">Baru Debtera</a></div><p class="ds-related-work--abstract ds2-5-body-sm">The purpose of this paper is to illustrate the setup and solution of a 3D turbulent fluid flow for periodic section of a mixing tank. Mixing is a very crucial unit operation in process industry. The efficiency of mixing depends on the type of agitator that will provide the required level of mixing in as short time as possible. Mixing time is usually the critical parameter in determining the efficiency of an agitated system. A CFD analysis yields values for species concentration, fluid velocity and temperature throughout the solution domain.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"REACTOR \u0026 PROCESS TECHNOLOGY Modeling Turbulent Flow in a Mixing Tank TURBULENT FLOW IN A MIXING TANK 2","attachmentId":50235957,"attachmentType":"pdf","work_url":"https://www.academia.edu/29783080/REACTOR_and_PROCESS_TECHNOLOGY_Modeling_Turbulent_Flow_in_a_Mixing_Tank_TURBULENT_FLOW_IN_A_MIXING_TANK_2","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/29783080/REACTOR_and_PROCESS_TECHNOLOGY_Modeling_Turbulent_Flow_in_a_Mixing_Tank_TURBULENT_FLOW_IN_A_MIXING_TANK_2"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="6" data-entity-id="30522711" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/30522711/Fluid_mechanics_and_blending_in_agitated_tanks">Fluid mechanics and blending in agitated tanks</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="20117880" href="https://independent.academia.edu/VivekRanade">Vivek Ranade</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Chemical Engineering Science, 1991</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Fluid mechanics and blending in agitated tanks","attachmentId":50967428,"attachmentType":"pdf","work_url":"https://www.academia.edu/30522711/Fluid_mechanics_and_blending_in_agitated_tanks","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/30522711/Fluid_mechanics_and_blending_in_agitated_tanks"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="7" data-entity-id="7963749" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/7963749/RECENT_DEVELOPMENTS_IN_CFD_APPLIED_TO_VISCOUS_AND_NON_NEWTONIAN_MIXING_IN_AGITATED_VESSELS">RECENT DEVELOPMENTS IN CFD APPLIED TO VISCOUS AND NON-NEWTONIAN MIXING IN AGITATED VESSELS</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="15181908" href="https://independent.academia.edu/christianrivera7">christian rivera</a></div><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"RECENT DEVELOPMENTS IN CFD APPLIED TO VISCOUS AND NON-NEWTONIAN MIXING IN AGITATED VESSELS","attachmentId":34435678,"attachmentType":"pdf","work_url":"https://www.academia.edu/7963749/RECENT_DEVELOPMENTS_IN_CFD_APPLIED_TO_VISCOUS_AND_NON_NEWTONIAN_MIXING_IN_AGITATED_VESSELS","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/7963749/RECENT_DEVELOPMENTS_IN_CFD_APPLIED_TO_VISCOUS_AND_NON_NEWTONIAN_MIXING_IN_AGITATED_VESSELS"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="8" data-entity-id="92614225" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/92614225/Simplified_Calculation_of_Mixing_and_Suspending_Processes_in_Agitated_Vessels_Part_II_Examples_of_Application">Simplified Calculation of Mixing and Suspending Processes in Agitated Vessels - Part II: Examples of Application</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="5270193" href="https://independent.academia.edu/RolfLohse">Rolf Lohse</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Chemical Engineering & Technology, 2008</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Simplified Calculation of Mixing and Suspending Processes in Agitated Vessels - Part II: Examples of Application","attachmentId":95576499,"attachmentType":"pdf","work_url":"https://www.academia.edu/92614225/Simplified_Calculation_of_Mixing_and_Suspending_Processes_in_Agitated_Vessels_Part_II_Examples_of_Application","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/92614225/Simplified_Calculation_of_Mixing_and_Suspending_Processes_in_Agitated_Vessels_Part_II_Examples_of_Application"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="9" data-entity-id="6139057" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/6139057/Review_on_gas_liquid_mixing_analysis_in_multiscale_stirred_vessel_using_CFD">Review on gas-liquid mixing analysis in multiscale stirred vessel using CFD</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="9205649" href="https://malaya.academia.edu/ShalizaIbrahim">Shaliza Ibrahim</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Reviews in Chemical Engineering, 2012</p><p class="ds-related-work--abstract ds2-5-body-sm">This review aims to establish common approaches and equations used in computational fluid dynamics (CFD) analysis for gas-liquid mixing operations and investigate their strengths and weaknesses. The review concluded that with a sufficient computing strength, Eulerian-Lagrangian approaches can simulate detailed flow structures for dispersed multiphase flow with high spatial resolution. Turbulence is an important factor in fluid dynamics, and literature confirmed that k- e is the most widely used turbulence model. However, it suffers from some inherent shortcomings that stemmed from the assumption of isotropy of turbulence and homogenous mixing, which is suitable for very high Reynolds number in unbaffled stirred vessels. In CFD simulations for gas-liquid systems in stirred vessels, bubble size distribution is the most important parameter; hence, different techniques for formulation of bubble size equations have been investigated. These techniques involve source and sink terms for coalescence or breakup and provide a framework in which the population balance method together with the coalescence and breakup models can be unified into three-dimensional CFD calculations. Different discretization schemes and solution algorithms were also reviewed to confirm that third-order solutions provide the least erroneous simulation results. © 2012 by Walter de Gruyter, Berlin, Boston. www.degruyter.com/view/j/revce.2012.28.issue-2-3/revce-2012-0003/revce-2012-0003.xml</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Review on gas-liquid mixing analysis in multiscale stirred vessel using CFD","attachmentId":33036142,"attachmentType":"pdf","work_url":"https://www.academia.edu/6139057/Review_on_gas_liquid_mixing_analysis_in_multiscale_stirred_vessel_using_CFD","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/6139057/Review_on_gas_liquid_mixing_analysis_in_multiscale_stirred_vessel_using_CFD"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div></div></div><div class="ds-sticky-ctas--wrapper js-loswp-sticky-ctas hidden"><div class="ds-sticky-ctas--grid-container"><div class="ds-sticky-ctas--container"><button class="ds2-5-button js-swp-download-button" data-signup-modal="{"location":"continue-reading-button--sticky-ctas","attachmentId":106743433,"attachmentType":"pdf","workUrl":null}">See full PDF</button><button class="ds2-5-button ds2-5-button--secondary js-swp-download-button" data-signup-modal="{"location":"download-pdf-button--sticky-ctas","attachmentId":106743433,"attachmentType":"pdf","workUrl":null}"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">download</span>Download PDF</button></div></div></div><div class="ds-below-fold--grid-container"><div class="ds-work--container js-loswp-embedded-document"><div class="attachment_preview" data-attachment="Attachment_106743433" style="display: none"><div class="js-scribd-document-container"><div class="scribd--document-loading js-scribd-document-loader" style="display: block;"><img alt="Loading..." src="//a.academia-assets.com/images/loaders/paper-load.gif" /><p>Loading Preview</p></div></div><div style="text-align: center;"><div class="scribd--no-preview-alert js-preview-unavailable"><p>Sorry, preview is currently unavailable. 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