Convective heat transfer over a heated square porous cylinder in a channel |
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| Authors: | Horng-Wen Wu Ren-Hung Wang |
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| Affiliation: | 2. Department of Medicine, Division of Cardiology, University of Kentucky College of Medicine, Lexington, Kentucky;1. Department of Systems and Naval Mechatronic Engineering, National Cheng Kung University, Tainan, Taiwan, ROC;2. Advanced Technology Division, Shun On Electronic Company Limited, Hsinchu, Taiwan, ROC;1. LCFT, Department of Mechanical Engineering, Universidade Federal do Espirito Santo, Avenida Fernando Ferrari, 514, Goiabeiras 29075-910, ES, Brazil;2. LCFT-LMTA, Department of Mechanical Engineering (PGMEC), Universidade Federal Fluminense, Rua Passo da Patria 156, 24210-240 Niteroi, RJ, Brazil;1. Theoretical Division, T-3, Los Alamos National Laboratory, Los Alamos, NM 87545, United States;2. Department of Scientific Computing, Florida State University, Tallahassee, FL 32306, United States;1. Department of Packaging Engineering, Jiangnan University, Wuxi, China;2. Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Wuxi, China |
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| Abstract: | A numerical study is made of the unsteady flow and convection heat transfer for a heated square porous cylinder in a channel. The general Darcy–Brinkman–Forchheimer model is adopted for the porous region. The parameters studies including porosity, Darcy number, and Reynolds number on heat transfer performance have been explored in detail. The results indicate that the average local Nusselt number is augmented as the Darcy number increases. The average local Nusselt number increases as Reynolds number increases; in particular, the increase is more obvious at a higher Darcy number. In contrast, the porosity has slight influence on heat transfer. |
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