Free convection effects on the oscillatory flow in the Stokes's problem past an infinite porous vertical limiting surface with heat sources

Astronomy and Astrophysics – Astrophysics

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Aerothermodynamics, Convective Flow, Free Convection, Oscillating Flow, Stokes Law (Fluid Mechanics), Astrophysics, Flow Velocity, Perturbation Theory, Two Dimensional Flow, Unsteady Flow, Viscous Flow

Scientific paper

The unsteady two-dimensional free convection flow of a viscous incompressible fluid past an impulsively started infinite, porous, vertical limiting surface subjected to a constant suction velocity is studied. The effect of heat source is taken into account in the form of free stream velocity oscillations in time about a constant mean. Approximate solutions for the coupled nonlinear equations are derived for the mean velocity, the mean temperature, the mean skin-friction, and the mean rate of heat transfer. They are shown graphically followed by a quantitative discussion wherein the effects of the Prandtl, Eckert, and Grashof numbers on the flow field are considered.

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