Magnetic and Thermal Diffusion Effects on a Three-Dimensional Free Convective Flow Past a Uniformly Moving Porous Vertical Plate
The problem of a three dimensional free convection flow with mass transfer of an incompressible viscous electrically conducting fluid past a uniformly moving porous vertical plate with transverse sinusoidal suction velocity is considered. A magnetic field of uniform strength is assumed to be applied normal to the plate. The expressions for skin-friction at the plate in the direction of flow, rate of heat transfer in terms of Nusselt number, rate of mass transfer in terms of Sherwood number, velocity field, temperature field and species concentration field are obtained in non-dimensional forms. The effects of Hartmann number, Schmidt number, Soret number, Reynolds number on the skin friction, Nusselt number, Sherwood number, velocity field, temperature field and concentration field are discussed graphically and the results are physically interpreted.
MHD effects on heat and mass transfer in flow of a viscous fluid with induced magnetic field
The present study is concerned with /l ow of an incompress ible electricall y conducting viscous fluid past a steady moving semiin finite vertical porous plate under the action of uniform tran sverse magnetic fi eld taki ng into account the induced magnet ic fi eld <Ind const; lnt heat fl ux. The anal y ti cal solutions for veloci ty fi elcl. tem perature distribution. induced magnetiL' fie ld . CUITelil densit y. concentration fi eld and the express ions for shear stress and ra te of heal transfer arc ohtained'and discussed in det;li l.
Natural convection in a thermally stratified fluid saturated porous medium
Abstract Natural convection heat transfer results are presented for a vertical plate of finite length immersed in a fluid saturated porous medium. The ambient vertical temperature gradient is positive but the plate temperature is everywhere higher than that of the surrounding fluid. Solutions are obtained by series expansion about the leading edge of the plate. The effects of stratification parameter on local and overall heat transfer coefficients, velocity and temperature fields are studied.