**On a New Numerical Approach on Micropolar Fluid, Heat and Mass Transfer Over an Unsteady Stretching Sheet Through Porous Media in the Presence of a Heat Source/ Sink and Chemical Reaction**

Stanford Shateyi, Fazle Mabood and Gerald Tendayi Marewo

Additional information is available at the end of the chapter

http://dx.doi.org/10.5772/63800

#### **Abstract**

The problem of MHD micropolar fluid, heat and mass transfer over unsteady stretch‐ ing sheet through porous medium in the presence of a heat source/sink and chemical reaction is presented in this chapter. By applying suitable similarity transformations, we transform the governing partial differential equations into a system of ordinary differential equations. We then apply the recently developed numerical technique known as the Spectral Quasi-Linearization Method. The validity of the accuracy of the technique is checked against the bvp4c routine method. Numerical results for the surface shear stresses, Nusselt number and the Sherwood number are presented in tabular form. Also numerical results for the velocity, temperature and concentration distribution are presented in graphical forms, illustrating the effects of varying values of different parameters.

**Keywords:** micropolar fluid, unsteady stretching sheet, porous media, heat source/ sink, Spectral Quasi-Linearization Method
