Forced convection in thermally developing region of a channel partially filled with a porous material and optimal porous fraction |
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| Authors: | VV Satyamurty D Bhargavi |
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| Affiliation: | 1. Research Center of Sustainable Energy and Energy Storage, China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai 200240, China;2. Department of Mechanical Engineering, Bourns College, University of California, Riverside, CA 92507-92521, United States;3. Zhongtong Bus Holding Co., Ltd., Liaocheng 252000, China;1. School of Chemical Engineering, Northwest University, Taibai North Road 229, Xi''an 710069, China;2. School of Civil Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China;3. School of Chemical Engineering and Technology, Xi''an Jiaotong University, Xi''an 710049, China |
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| Abstract: | Local Nusselt numbers have been obtained on the porous side and the fluid side of the parallel plate channel. Plots to obtain wall heat transfer directly have been presented. Change in wall heat transfer has been examined to establish that the maximum enhancement in heat transfer occurs at a porous fraction of 0.8 at a Darcy number of 0.001. Correspondingly, the maximum enhancement per unit pressure drop occurs at a porous fraction of 0.7. As Darcy number increases, the porous fraction at which the maximum enhancement in heat transfer occurs decreases. |
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