MAGNETOHYDRODYNAMIC MIXED CONVECTION FROM A VERTICAL PLATE EMBEDDED IN A POROUS MEDIUM

Magnetohydrodynamic mixed convection flow about a vertical flat plate embedded in a porous medium is considered. The effect of the magnetic field strength on the local Nusselt number and local wall shear stress is presented. The non-Darcian model including both the inertial and boundary effects is used. A particular transformation for the governing equations is adopted to cover the whole mixed convection regime within two finite limits. Appreciable effects of the magnetic field strength on the local Nusselt number as well as on the local wall shear stress in the mixed convection regime are found.

[1]  P. Bradshaw,et al.  Momentum transfer in boundary layers , 1977 .

[2]  Ashok K. Singh,et al.  An exact solution for unsteady magnetohydrodynamic free convection flow with constant heat flux , 1994 .

[3]  N. Riley,et al.  Magnetohydrodynamic free convection , 1964, Journal of Fluid Mechanics.

[4]  B. Armaly,et al.  MIXED CONVECTION OVER NONISOTHERMAL HORIZONTAL SURFACES IN A POROUS MEDIUM: THE ENTIRE REGIME”“ , 1994 .

[5]  A. Raptis Flow through a porous medium in the presence of a magnetic field , 1986 .

[6]  Bassem F. Armaly,et al.  Nonsimilarity solutions for mixed convection from vertical surfaces in porous media: variable surface temperature or heat flux , 1993 .

[7]  H. Takhar,et al.  Magnetohydrodynamic free convection flow of water at 4°C through a porous medium , 1994 .

[8]  Md. Anwar Hossain,et al.  Viscous and Joule heating effects on MHD-free convection flow with variable plate temperature , 1992 .

[9]  A. Raptis,et al.  MHD free convection flow past an accelerated vertical plate , 1983 .

[10]  C. Hsu,et al.  The Brinkman model for natural convection about a semi-infinite vertical flat plate in a porous medium , 1985 .

[11]  R. Moreau,et al.  Buoyancy driven convection in a rectangular enclosure with a transverse magnetic field , 1992 .

[12]  S. Pai,et al.  Magnetogasdynamics and Plasma Dynamics , 1962 .

[13]  A. Raptis,et al.  Heat transfer in flow through a porous medium bounded by an infinite vertical plate under the action of a magnetic field , 1982 .

[14]  W. Minkowycz,et al.  Mixed Convection about a Nonisothermal Cylinder and Sphere in a Porous Medium , 1985 .

[15]  D. Nield The limitations of the Brinkman-Forchheimer equation in modeling flow in a saturated porous medium and at an interface , 1991 .

[16]  N. Kafoussias MHD free convective flow through a non homogeneous porous medium over an isothermal cone surface , 1992 .

[17]  C. L. Tien,et al.  Boundary and inertia effects on flow and heat transfer in porous media , 1981 .

[18]  F. Kulacki,et al.  Non-Darcy Mixed Convection Along a Vertical Wall in a Saturated Porous Medium , 1991 .

[19]  E. Sparrow,et al.  The effect of a magnetic field on free convection heat transfer , 1961 .