Publicado 12 números por año
ISSN Imprimir: 1091-028X
ISSN En Línea: 1934-0508
Indexed in
ANALYSIS OF ENTROPY GENERATION IN A HORIZONTAL CHANNEL CONTAINING FLUID AND POROUS LAYERS
SINOPSIS
This paper investigates the influence of viscous and Darcy dissipations on the fully developed flow and convective heat transfer between horizontal plates in a partially filled porous media saturated with the same fluid. The Brinkman model is used to simulate flow formation through porous media with small velocities. The study of flow systems composed of a porous medium and a homogenous fluid has attracted much attention since they occur in a wide range of industrial and environmental applications. Such flow systems occur with overland flow during rainfall, ground water flow, petroleum industrial processes, and electronic cooling, etc. The thermal energy equations corresponding to fluid and porous layers are solved by the separation of variables method. The velocity and the temperature fields are plotted as functions of the Darcy number, the Brinkman number, the viscosity, and the thermal conductivity ratio parameters to see the effect of these parameters. Each wall has large entropy generation due to fluid friction, and a similar result is also obtained around the interface, especially at the porous interface, while the central regions of fluid and porous medium have huge entropy due to heat transfer because of the large velocity and less gradient of velocity in these regions.
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