scholarly journals MHD FREE CONVECTIVE FLOW PAST AN IMPULSIVELY MOVING VERTICAL PLATE WITH RAMPED HEAT FLUX THROUGH POROUS MEDIUM IN THE PRESENCE OF INCLINED MAGNETIC FIELD

2016 ◽  
Vol 7 ◽  
Author(s):  
Gauri Shanker Seth ◽  
Prashanta Kumar Mandal ◽  
Ali J Chamkha
Keyword(s):  
Magnetic Field ◽  
Heat Flux ◽  
Porous Medium ◽  
Convective Flow ◽  
Vertical Plate ◽  
Inclined Magnetic Field ◽  
Free Convective Flow ◽  
Flow Past

scholarly journals Effects of Hall Currents and Radiation on MHD Free Convective Flow Past a Oscillating Vertical Plate with Oscillatory Plate Temperature in a Porous Medium

2012 ◽  
Vol 3 ◽  
pp. 5-27
Author(s):  
Bhaskar Chandra Sarkar ◽  
Sanatan Das ◽  
Rabidra Nath Jana
Keyword(s):  
Porous Medium ◽  
Shear Stress ◽  
Convective Flow ◽  
Vertical Plate ◽  
Fluid Velocity ◽  
Governing Equations ◽  
Free Convective Flow ◽  
Primary Flow ◽  
Plate Temperature ◽  
Flow Past

Combined effects of Hall currents and radiation on an unsteady MHD free convective flow past a vertical flat plate with oscillatory plate temperature in a porous medium have been studied. The governing equations are solved analytically in closed form. The results obtained are presented graphically. It is found that the Hall currents accelerate the fluid velocity components whereas the radiation has a tendency to retard the fluid velocity components. Porosity of the medium has a tendency to enhance the fluid velocity components. Hall currents reduce the amplitude of the shear stress at the plate due to the unsteady primary flow whereas they increase the amplitude of the shear stress at the plate due to the unsteady secondary flow. Further, the rate of heat transfer at the plate due to unsteady flow increases with an increase in either radiation parameter or Prandtl number or frequency parameter.

scholarly journals MHD free convective flow past an impulsively started vertical plate through a porous medium with radiative heat transfer and chemical reaction in a rotating system

2019 ◽  
Vol 15 (2) ◽  
pp. 237-242
Author(s):  
Uday Singh Rajput ◽  
Mohammad Shareef
Keyword(s):  
Porous Medium ◽  
Chemical Reaction ◽  
Convective Flow ◽  
Vertical Plate ◽  
Hall Current ◽  
Fluid Velocity ◽  
Rotating System ◽  
Free Convective Flow ◽  
Flow Past ◽  
Laplace Transform Technique

The effect of Hall current, radiation and chemical reaction on MHD free convective flow past an impulsively started vertical plate through a porous medium in a rotating system is considered. The analytical solutions of dimensionless governing equations are obtained by Laplace transform technique. The effects of various parameters on the fluid velocity, concentration and temperature distribution near the plate are analyzed and shown graphically. The numerical values of shear stress at the plate are shown in a table. It is observed that the fluid velocity near the plate is affected significantly by Hall current, radiation, chemical reaction and porous medium. The conclusion of study have applications in the field related to the solar physics dealing with the solar cycle, the sunspot development, the structure of rotating magnetic stars etc.

Sign in / Sign up

Export Citation Format

Share Document