Influence of periodic temperature and concentration on unsteady free convective viscous incompressible flow and heat transfer past a vertical plate in slip-flow regime

Pawan Kumar Sharma

Received Dec. 6, 2004        Accepted Apr. 12, 2005

Abstract:

The effect of combined heat and mass transfer on unsteady free convective, viscous incompressible flow past a vertical flat plate in slip-flow regime is studied. Assuming variable suction at the plate, approximate solutions are obtained for velocity, skin-friction, temperature, heat transfer and concentration. During the course of discussion, the effects of $Gr$ (Grashof number based on temperature), $Gc$ (modified Grashof number based on concentration difference), A (suction parameter) and $\omega$ (frequency parameter) for carbon dioxide ($Sc = 0.94$) in air ($Pr = 0.71$) are presented and discussed graphically.

Key words and phrases:Free convection, unsteady, incompressible fluid, slip-flow, heat and mass transfer

AMSC(2000): Primary: 76E05, Secondary: 76R10, 80A20.

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