*Department of Mathematics, Sri Venkateswara University, Tirupati, Andhra Pradesh, India
**Department of Mathematics, Noble college, Machilipatnam, Andhra Pradesh, India
***Department of Mathematics, University of Botswana, Gaborone, Botswana
Online published on 11 June, 2014.
In this paper, the effects of chemical reaction and heat source on free convective oscillatory coquette flow of a viscous incompressible fluid through a variable porous medium bounded by two vertical parallel porous plates are analyzed. The approximate solutions to the velocity, temperature and concentration are obtained by assuming that the free stream velocity oscillates in times about a constant mean and that there is a periodic temperature in the moving plate. The effect of governing parameters on the flow variables are discussed quantitatively with the aid of graphs and tables for the flow field, temperature field, concentration field, skin-friction, Nusselt number and Sherwood number.
Couette flow, variable porous medium, chemical reaction, heat source
