UNSTEADY MHD STOKES FLOW OF A BI-VISCOSITYFLUID WITH HEAT AND MASS TRANSFER THROUGHPOROUS MEDIUM BETWEEN TWO WAVY SURFACES

摘要

In this paper, the problem of unsteady MHD Stokes flow with heat and mass transfer of anon-Newtonian field of type Bi-viscosity is considered. A uniform magnetic field is assumed to be appliedperpendicular to the wavy surfaces. The equations governing the fluid flow have been solved analytically underlow Reynolds number assumption. Expressions for the velocity, the temperature and the concentration havebeen obtained and showed graphically for various values of physical parameters of Interest, such as the magneticparameter M, the permeability parameter K and the upper limit of apparent viscosity coefficient β.