Hall Effects on Radiating MHD Flow Past an Accelerated Plate in a Rotating Fluid

2012 ◽  
Author(s):  
R. K. Deka ◽  
S. K. Das
Keyword(s):  
Thermal Radiation ◽  
Velocity Distribution ◽  
Laplace Transformation ◽  
Vertical Plate ◽  
Mhd Flow ◽  
Rotating Fluid ◽  
Transformation Technique ◽  
Flow Past ◽  
Hall Effects ◽  
Infinite Vertical Plate

The effects of thermal radiation on the MHD flow past an accelerated infinite vertical plate in a rotating fluid, taking Hall effect into account, has been investigated. The solutions are obtained by Laplace transformation technique. Velocity distribution (both axial and transverse) are shown graphically, whereas the numerical values of the axial and transverse components of skin-friction are listed in a table.

scholarly journals Radiation effects on MHD flow past an impulsively started infinite vertical plate with mass diffusion

2014 ◽  
Vol 19 (1) ◽  
pp. 17-26
Author(s):  
P. Chandrakala ◽  
P. Narayana
Keyword(s):  
Magnetic Field ◽  
Thermal Radiation ◽  
Radiation Effects ◽  
Schmidt Number ◽  
Vertical Plate ◽  
Mhd Flow ◽  
Governing Equations ◽  
Grashof Number ◽  
Flow Past ◽  
Infinite Vertical Plate

Abstract The effects of thermal radiation on a flow past an impulsively started infinite vertical plate in the presence of a magnetic field have been studied. The fluid considered is a gray, absorbing-emitting radiation but non-scattering medium. The dimensionless governing equations are solved by an efficient, more accurate, unconditionally stable and fast converging implicit scheme. The effects of velocity and temperature for different parameters such as the thermal radiation, magnetic field, Schmidt number, thermal Grashof number and mass Grashof number are studied. It is observed that the velocity decreases in the presence of thermal radiation or a magnetic field

scholarly journals Hall effects on MHD flow past an accelerated plate

2008 ◽  
Vol 35 (4) ◽  
pp. 333-346 ◽  
Author(s):  
R.K. Deka
Keyword(s):  
Hartmann Number ◽  
Hall Current ◽  
Transverse Velocity ◽  
Mhd Flow ◽  
Transverse Motion ◽  
Rotating Fluid ◽  
Flow Past ◽  
Hall Effects ◽  
Hall Parameter ◽  
Effects Of Rotation

The simultaneous effects of rotation and Hall current on the hydromagnetic flow past an accelerated horizontal plate relative to a rotating fluid is presented. It is found that for given values of m (Hall parameter), M (Hartmann number) and an imposed rotation parameter ? satisfying ? = M 2m/(1 + m2), the transverse motion (transverse to the main flow) disappears and the fluid moves in the direction of the plate only. The effects of the parameters m, M and ? on the axial and transverse velocity profiles are shown graphically, whereas the effects of the parameters on the skin-friction components are shown by tabular values.

scholarly journals Hall Effects And Rotation Effects On MHD Flow Past An Exponentially Accelerated Vertical Plate With Combined Heat And Mass Transfer Effects

2015 ◽  
Vol 20 (3) ◽  
pp. 605-616 ◽  
Author(s):  
M. Thamizhsudar ◽  
J. Pandurangan ◽  
R. Muthucumaraswamy
Keyword(s):  
Prandtl Number ◽  
Schmidt Number ◽  
Vertical Plate ◽  
Transverse Velocity ◽  
Mhd Flow ◽  
Rotation Parameter ◽  
Grashof Number ◽  
Flow Past ◽  
Hall Effects ◽  
Hall Parameter

Abstract A theoretical solution of flow past an exponentially accelerated vertical plate in the presence of Hall current and MHD relative to a rotating fluid with uniform temperature and mass diffusion is presented. The dimensionless equations are solved using the Laplace method. The axial and transverse velocity, temperature and concentration fields are studied for different parameters such as the Hall parameter (m), Hartmann number (M), Rotation parameter (Ω), Schmidt number, Prandtl number, thermal Grashof number (Gr) and mass Grashof number (Gc). It has been observed that the temperature of the plate decreases with increasing values of the Prandtl number and the concentration near the plate increases with decreasing values of Schmidt number. It is also observed that both axial and transverse velocities increase with decreasing values of the magnetic field parameter or rotation parameter, but the trend gets reversed with respect to the Hall parameter. The effects of parameters m, M, Ω, Gr and Gc on the axial and transverse velocity profiles are shown graphically.

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