Multimedia Features for Conjugate Heat Transfer of MHD Mixed Convection with Ohmic Effect for Viscoelastic Fluid Past a Stretching Sheet

In this study, an analysis has been performed for conjugate heat transfer and multimedia features of a steady laminar boundary-layer mixed convection of magnetic hydrodynamic (MHD) flow with ohmic effect second grade viscoelastic fluid past a stretching sheet. The similarity transformation and the finite-difference method have been used to analyze the present problem. The conjugate heat transfer results show that the non-Newtonian viscoelastic fluid has a better heat transfer effect than the Newtonian fluid flow. The free convection with a larger G has a good heat transfer effect better than a forced convection flow (G=0). On the other hand, a lager Ncc number has a good conjugate heat transfer effect better than a lower Ncc number.

I. Introduction

The study of magnetic viscoelastic fluids had been become of increasing importance in the last few years. This is mainly due to their many applications in petroleum drilling, manufacturing of foods and paper and many other similar activities. Srivatsava [1] studied the non-Newtonian fluid flow near a stretching sheet. Rajagopal et al. [2] studied a Falkner-Skan flow field of a second-grade viscoelastic fluid. Massoudi and Ramezan [3] studied a wedge flow with suction and injection along walls of a wedge by the similarity method and finite-difference calculations. An excellent review of boundary layers in non-linear fluids was recently written by Rajagopal [4]. Vajravelu and Soewono [5] had solved the fourth order non-linear systems arising in combined free and forced convection flow of a second order fluid, over a stretching sheet.