Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ap%26ss.141..281h&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 141, no. 2, Feb. 1988, p. 281-291.
Astronomy and Astrophysics
Astrophysics
1
Crank-Nicholson Method, Free Convection, Hall Effect, Magnetohydrodynamic Flow, Unsteady Flow, Finite Difference Theory, Incompressible Flow, Laplace Transformation, Maxwell Equation
Scientific paper
The effect of Hall current on the hydromagnetic free-convection flow of an electrically-conducting viscous incompressible fluid past an impulsively accelerated vertical porous plate in the presence of a uniform transverse magnetic field subjected to a constant transpiration velocity is analyzed for the case of a small magnetic Reynolds number. Numerical solutions are obtained for the axial and transverse components of the velocity as well as the skin-friction by employing the Crank-Nicolson implicit finite-difference method for all probable values of the Prandtl number. The results are discussed with the effects of the Grashof number, the transpiration velocity parameter, the Hall current parameter, and the magnetic field parameter for the Prandtl number Pr = 0.71 which represents air at 20 C.
Arbad O.
Hossain Amjad Md.
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