Mixed convection from two thermal sources in a vertical porous layer |
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| Affiliation: | 1. School of Mechanical Engineering, University of Science Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia;2. Faculty of Mathematics, University of Cluj, R-3400 Cluj, CP 253, Romania;1. Dpto. de Ingeniería Energética, Escuela Técnica Superior de Ingenieros, Universidad de Sevilla, Camino de los Descubrimientos, s/n, 41092 Sevilla, Spain;2. School of Mechanical and Mining Engineering, The University of Queensland, Queensland, Australia;3. Centre for Advanced Research on Energy (CARe), Faculty of Mechanical Engineering, Universiti Teknikal Malaysia Melaka, Melaka, Malaysia;1. Department of Preventive Medicine, School of Public Health & Management, Wenzhou Medical University, Wenzhou, Zhejiang, China;2. Taizhou Hospital of Zhejiang Province, Taizhou, Zhejiang, China;3. Center on Evidence-Based Medicine & Clinical Epidemiological Research, School of Public Health and Management, Wenzhou Medical University, Wenzhou, Zhejiang, China;4. Center on Clinical Research, The Eye Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China;5. Center for Scientific Research, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China;6. Department of Medical Affairs, No.118 Hospital of PLA (People''s Liberation Army), Wenzhou, Zhejiang, China;1. National Key Laboratory of Human Factors Engineering, Astronaut Center of China, Beijing 100094, China;2. Key Laboratory of Thermal Fluid Science and Engineering of Ministry of Education, School of Energy and Power Engineering, Xi''an Jiaotong University, Xi''an, Shaanxi 710049, China |
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| Abstract: | In this paper the steady mixed convection flow adjacent to a vertical surface embedded in a fluid-saturated porous medium, on which two isolated thermal sources are located is investigated theoretically. The thermal sources are taken as long planar sources of finite height and the resulting two-dimensional flow is numerically studied using the finite volume method. The nature and the basic characteristics of the mixed aiding as well as mixed opposing flows that arise are investigated using the Darcy law model. The governing parameters are the Rayleigh number, Péclet number, separation distance between heated elements, their lengths and heat flux ratio in additional to the external flow direction. These parameters are varied over wide ranges and their effect on the heat transfer characteristics is studied in detail. |
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