Magnetohydrodynamic transient-free convection flow past a semi-infinite vertical plate with constant heat flux

1991 ◽  
Vol 69 (12) ◽  
pp. 1451-1453 ◽  
Author(s):  
M. Y. Gokhale ◽  
V. M. Soundalgekar
Keyword(s):  
Magnetic Field ◽  
Average Nusselt Number ◽  
Vertical Plate ◽  
Constant Heat Flux ◽  
Convection Flow ◽  
Free Convection Flow ◽  
Constant Heat ◽  
Average Skin ◽  
The Magnetic Field ◽  
Infinite Vertical Plate

A. magnetohydrodynamic transient-free convection flow of air past a semi-infinite vertical plate with a constant heat flux and a transversely applied uniform magnetic field is studied using the finite-difference method. The equations are solved by a computer using the Thomas algorithm. The transient temperature, transient velocity, average skin friction, and average Nusselt number are shown graphically. It is observed that the average skin friction and the average Nusselt number decrease owing to the application of the magnetic field. It also takes more time to reach a steady state when the magnetic field is present.

Unsteady Magnetohydrodynamic Free Convection Flow of a Radiative Fluid Past an Infinite Vertical Plate with Constant Heat and Mass Flux

2013 ◽  
Vol 465-466 ◽  
pp. 149-154
Author(s):  
Marneni Narahari ◽  
Sowmya Tippa ◽  
Rajashekhar Pendyala
Keyword(s):  
Magnetic Field ◽  
Free Convection ◽  
Mass Flux ◽  
Vertical Plate ◽  
Temperature Fields ◽  
Convection Flow ◽  
Free Convection Flow ◽  
Constant Heat ◽  
Laplace Transform Technique ◽  
Infinite Vertical Plate

Theoretical analysis of unsteady magnetohydrodynamic free convection flow of a viscous incompressible radiative fluid past an infinite vertical plate with constant heat and mass flux is presented. The dimensionless governing linear partial differential equations have been solved using the Laplace transform technique. The exact solutions for the velocity, temperature and concentration fields are derived. The effects of radiation, magnetic field and buoyancy ratio parameters on the velocity and temperature fields are discussed through graphs. It is found that the velocity increases with increasing radiation parameter whereas it decreases with increasing magnetic field parameter for buoyancy assisted flows.

scholarly journals Influence of soret effect on mhd mixed convection flow of visco-elastic fluid past a vertical surface with hall effect

2014 ◽  
Vol 19 (1) ◽  
pp. 79-95 ◽  
Author(s):  
A.K. Jha ◽  
K. Choudhary ◽  
A. Sharma
Keyword(s):  
Vertical Plate ◽  
Soret Effect ◽  
Vertical Surface ◽  
Unsteady Motion ◽  
Convection Flow ◽  
Mixed Convection Flow ◽  
Free Convection Flow ◽  
The Magnetic Field ◽  
Infinite Vertical Plate ◽  
Newtonian Behavior

Abstract The present paper deals with the unsteady motion of an MHD free convection flow of an incompressible non- Newtonian viscoelastic fluid past an infinite vertical plate in the presence of a heat source and Soret effect. A parametric study illustrating the influence of various parameters on the temperature, velocity as well as on the skin-friction and rate of heat transfer is conducted. The results of the effect of the magnetic field, the parameter describing the non-Newtonian behavior, and the velocity of suction and injection on both the velocity and temperature distributions are examined and shown graphically

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