• NUMERICAL STUDY OF MHD DOUBLE DIFFUSIVE ROTATING FLOW OVER A VERTICAL POROUS PLATE IN THE PRESENCE OF HEAT SOURCE/SINK

KOTAGIRI SRIHARI

Abstract


This paper is devoted to introduce a numerical study of an unsteady double diffusive flow over an impulsively emerged vertical porous plate in fluctuating temperature and mass diffusion in the presence of heat source/sink. A magnetic field is applied normal to the flow. The governing equations in non-dimensional form are solved numerically, using Crank-Nicholson method and the simulation is carried out by coding in C-Program. Graphical results for velocity, temperature and concentration fields and tabular values of Nusselt number are presented and discussed at various parametric conditions. From this study, it is found that Nusselt number, temperature and velocity of the fluid increase in the presence heat source while reverse effect is noted in the presence of heat sink. Thermal radiation reduces the velocity and temperature of the fluid. The results which are obtained for Nusselt number in the absence/presence heat source and sink are almost tallied with previously published data.


Keywords


Double diffusive fluid; Rotation; MHD; Porous medium; Radiation; Finite-difference meyhod.

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