Numerical study of the combined free-forced convection and mass transfer flow past a vertical porous plate in a porous medium with heat generation and thermal diffusion. (English) Zbl 1125.76389

Summary: The problem of combined free-forced convection and mass transfer flow over a vertical porous flat plate, in presence of heat generation and thermal-diffusion, is studied numerically. The nonlinear partial differential equations and their boundary conditions, describing the problem under consideration, are transformed into a system of ordinary differential equations by using usual similarity transformations. This system is solved numerically by applying Nachtsheim-Swigert shooting iteration technique together with Runge-Kutta sixth order integration scheme. The effects of suction parameter, heat generation parameter and Soret number are examined on the flow field of a hydrogen-air mixture as a non-chemical reacting fluid pair. The analysis of the obtained results showed that the flow field is significantly influenced by these parameters.


76S05 Flows in porous media; filtration; seepage
35Q35 PDEs in connection with fluid mechanics
80A20 Heat and mass transfer, heat flow (MSC2010)