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Mixed convection from two thermal sources in a vertical porous layer. (English) Zbl 1188.76249
Summary: 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, PĂ©clet 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.

MSC:
76R05 Forced convection
76R10 Free convection
76M20 Finite difference methods applied to problems in fluid mechanics
80A20 Heat and mass transfer, heat flow (MSC2010)
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