Mass transfer effects on the non-Newtonian fluids past a vertical plate embedded in a porous medium with non-uniform surface heat flux

The present study is devoted to investigate the influences of mass transfer on buoyancy induced flow over vertical flat plate embedded in a non-Newton ian fluid saturated porous medium. The Ostwald-de Waele power-law model is used to characterize the non-Newtonian fluid behavior. Similarity solution for the transformed governing equations is obtained with prescribed variabl e surface heat flux. Numerical results for the details of the velocity, tem perature and concentration profiles are shown on graphs. Excess surface tem perature as well as concentration gradient at the wall associated with heat flux distributions, which are entered in tables, have been presented for d ifferent values of the power-law index n, buoyancy ration B and the exponen t lambda as well as Lewis number Le.