Unsteady Magnetohydrodynamic Free Convection Flow Past a Semi-Infinite Permeable Moving Plate Through Porous Medium With Chemical Reaction and Radiation Absorption

Abstract

The effect of the chemical reaction and radiation absorption on the unsteady free convective flow of an incompressible viscous fluid through porous medium past a semi-infinite vertical permeable moving plate is studied. The system is stressed by a uniform transverse magnetic field. The system equations are derived for the flow over a vertical plate and the resulting nonlinear coupled differential equations are solved numerically by finite difference technique. Also, the case of the flow over a horizontal plate was studied analytically by using the perturbation technique. A comparison between the case of vertical and horizontal flow was illustrated graphically to access the accuracy of our numerical calculations, and the results show an excellent agreement. The effects of various parameters on the velocity, temperature and concentration profiles are presented graphically and the physical aspects of the problem are highlighted and discussed.

Stratification, Slip and Cross Diffusion Impacts on Time Depending Convective Stream with Chemical Reaction

“…They made the conclusion that enhancing values of suction parameter reduced the stream velocity. El-dabe et al [3] studied unsteady hydro-magnetic naturally convective stream over a semi-infinite permeable dynamic plate with radiation and chemical reaction. Hakeem et al [4] investigated the influence of partial slip on hydro-magnetic stream past an elongated surface with non-uniform thermal source/sink, radiation and wall mass transport.…”

Unsteady Hydromagnetic Flow past a Moving Vertical Plate with Convective Surface Boundary Condition

“…Keeping in mind the importance of such studies, considerable amount of investigations are carried out by a number of researchers on unsteady hydromagnetic natural convection flow past a flat plate through fluid saturated porous medium considering various aspects of the problem. A reference may be made to the research studies of Raptis (1986), Jha (1991), Chamkha (1997), Chamkha and Ahmed (2011), Eldabe et al (2012), Samiulhaq et al (2013), Das et al (2014), Ghosh et al (2015) and Seth et al (2015a, b).…”