Abstract
Numerical investigation of mixed convection flow in a concentration‐stratified fluid‐saturated vertical square porous enclosure is investigated by Galerkin finite element method. The forced flow conditions are imposed by providing an inlet at the bottom wall and an outlet with a suction on the top wall. The free convection is induced by introducing a hot but isothermal temperature on the left vertical wall together with Boussinesq approximation on density. Numerical results are presented by tracing the cumulative heat and mass fluxes, streamline and isotherms of the fluid for a wide range of governing parameters such as suction/injection velocity “a”, suction/injection width (D/H), mass stratification parameters (SC), Rayleigh number “Ra”, buoyancy ratio “B”, and Lewis number “Le”.
Highlights
A wide range of scientific and engineering applications such as packed bed reactors, porous insulation, beds of fossil fuels, nuclear waste disposal, usage of porous conical bearings in lubrication technology, fibrous insulation systems, grain storage, chemical catalytic reactors, solar collectors, heat exchangers, food processing, energy efficient drying process, geophysics and energy related problems, requires a detailed understanding of convective heat transfer process in a fluid-saturated porous media. These applications are reviewed in recent books by 1–6, provided a detailed coverage of research works related to convective heat transfer in Porous media
Some of the industrial technical processes like solar central receivers exposed to wind currents, electronic Journal of Applied Mathematics devices cooled by fans, heat exchangers, microelectronic devices packed with micro-pin-fin, vented enclosures filled with microspheres require a detailed study of mixed convection process in porous enclosures under different conditions
Given that its occurrence is frequent, there is a necessity to understand the physics of this fundamental mechanism at board level
Summary
A wide range of scientific and engineering applications such as packed bed reactors, porous insulation, beds of fossil fuels, nuclear waste disposal, usage of porous conical bearings in lubrication technology, fibrous insulation systems, grain storage, chemical catalytic reactors, solar collectors, heat exchangers, food processing, energy efficient drying process, geophysics and energy related problems, requires a detailed understanding of convective heat transfer process in a fluid-saturated porous media. These applications are reviewed in recent books by 1–6 , provided a detailed coverage of research works related to convective heat transfer in Porous media. This certainly calls for a complete theoretical investigation of mixed convection process in porous media
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