The objective of this paper is to study the effect of non-constant 2-dimensional free convective flow during the motion of a viscous incompressible dusty fluid through a highly porous medium. The porous medium is bounded by a vertical plane surface of constant temperature. The surface absorbs the dusty fluid with constant velocity and the free stream velocity of the fluid vibrates about a mean constant value. Analytical expressions for the velocity of the fluid and dust are given. The effects of Grashof number and permeability parameter upon the velocity field are also shown in a graphical representation. The velocity profiles decreases with an increase in the mass concentration of the dust particles (or) increase of frequency parameter (or) increase of permeability parameter (or) increase of Grashof number.
This Problem deals with an oscillatory progression of an electrically conducting liquid with viscosity in the two dimensional field. MHD, mass and heat transfer are all consider here. The fluid passes through a permeable moving wet porous plate in the presences of transverse magnetic field. Vertical infinite porous plate is considered here.. Thermal diffusion effect is added into the governing equation. By using the perturbation technique, the analytical solution of the problem was obtained for the velocity, temperature and concentration profiles, Various non-dimensional parameters like Soret number, Schmidt number, Modified Grashof number, Prandtl number for heat and mass transfer are all discussed and he results depicted through graphs1.
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