Numerical analysis of time-dependent flow of viscous fluid due to a stretchable rotating disk with heat and mass transfer

In this paper we studied the time-dependent viscous fluid flow due to a rotating stretchable disk. Fluid filling porous medium. Darcy's law is used for description of porous medium. Moreover, the effect of chemical reaction and heat generation/absorption are considered in concentration and temperature equations respectively. Governing PDE's system is reduced to dimensionless form by appropriate parameters. Finite difference method is used to solve the dimensionless PDE's system. Behaviors of pertinent variables on temperature, velocity, mass and heat transfer rates are shown through graphs. Obtained results guarantee that velocity decreases for porosity parameter. Temperature increases for higher Prandtl number and heat generation. Concentration decreases for larger Schmidt number and chemical reaction parameter.