Simultaneous radiative and convective heat transfer in a variable porosity medium

Nagaraju, Puttabasavashetty, Chamkha, Ali J., Takhar, Harmindar S. and Chandrasekhara, B. C. (2001) Simultaneous radiative and convective heat transfer in a variable porosity medium. Heat and Mass Transfer, 37 (2-3). pp. 243-250. ISSN 0947-7411

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Abstract

The flow of an incompressible grey fluid through a horizontal channel filled with a saturated medium of variable viscosity has been considered in this paper. Such flows in porous media have several applications in industrial processes. For the radiative effects a two flux model has been used in order to simplify the governing integro-differential equations for which closed-form solutions are not obtainable. The problem has been solved by employing a highly successful tri-diagonal, implicit, iterative, finite difference method. The effects of the pertinent parameters on the velocity and temperature distributions have been shown in several figures.