{"title":"Mixed Convection in a 2D-channel with a Co- Flowing Fluid Injection: Influence of the Jet Position","authors":"Ameni Mokni, Hatem Mhiri, Georges Le Palec, Philippe Bournot","volume":27,"journal":"International Journal of Aerospace and Mechanical Engineering","pagesStart":307,"pagesEnd":313,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/5585","abstract":"Numerical study of a plane jet occurring in a vertical\nheated channel is carried out. The aim is to explore the influence of\nthe forced flow, issued from a flat nozzle located in the entry section\nof a channel, on the up-going fluid along the channel walls. The\nReynolds number based on the nozzle width and the jet velocity\nranges between 3 103 and 2.104; whereas, the Grashof number based\non the channel length and the wall temperature difference is 2.57\n1010. Computations are established for a symmetrically heated\nchannel and various nozzle positions. The system of governing\nequations is solved with a finite volumes method. The obtained\nresults show that the jet-wall interactions activate the heat transfer,\nthe position variation modifies the heat transfer especially for low\nReynolds numbers: the heat transfer is enhanced for the adjacent\nwall; however it is decreased for the opposite one. The numerical\nvelocity and temperature fields are post-processed to compute the\nquantities of engineering interest such as the induced mass flow rate,\nand the Nusselt number along the plates.","references":"[1] O. Manca, B. Morrone, S. Nardini, V. Naso, Natural convection in open\nchannels, in: B. Sunden, G. Comini (Eds.), Computational Analysis of\nConvection Heat Transfer, WIT Press, Southampton, UK, 2000, pp.\n235- 278.\n[2] S.J. Kim, S.W. Lee, Air Cooling Technology for Electronic Equipment,\nCRC Press, Boca Raton, FL, 1996.\n[3] A. 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