SIMILARITY TRANSFORMATIONS OF HEAT AND MASS TRANSFER EFFECTS ON STEADY MHD FREE CONVECTION DISSIPATIVE FLUID FLOW PAST AN INCLINED POROUS SURFACE WITH CHEMICAL REACTION.

Autor: Reddy, G. V. Ramana, Ibrahim, S. Mohammed, Bhagavan, V. S.
Předmět:
Zdroj: Journal of Naval Architecture & Marine Engineering; Dec2014, Vol. 11 Issue 2, p157-166, 10p
Abstrakt: This paper concerns with a steady two-dimensional flow of an electrically conducting incompressible dissipating fluid over an inclined semi-infinite porous surface with heat and mass transfer in presence of chemical reaction. The flow is permeated by a uniform transverse magnetic field. A scaling group of transformation is applied to the governing equations. The system remains invariant due to some relations among the parameters of the transformations. After finding three absolute invariants, a third-order ordinary differential equation corresponding to the momentum equation, two secondorder ordinary differential equations corresponding to energy and diffusion equations are derived. The coupled ordinary differential equations along with the boundary conditions are solved numerically by using Runge-Kutta method along with shooting technique. The velocity and concentration is found to decrease gradually as the chemical reaction is increased. The results of the study are of great interest because flows on a vertical stretching surface play a predominant role in applications of science and engineering, as well as in many transport processes in nature. The effects of various parameters on velocity, temperature and concentration fields as well as skin-friction, Nusselt number and Sherwood number are presented graphically and tabulated form discussed qualitatively. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index