The skin friction in the unsteady free-convection flow past an accelerated plate

Details The skin friction in the unsteady free-convection flow past an accelerated plate The skin friction in the unsteady free-convection flow past an accelerated plate

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986ap%26ss.125..315h&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 125, no. 2, Aug. 1986, p. 315-324.

Astronomy and Astrophysics

Astrophysics

3

Free Convection, Porous Plates, Skin Friction, Unsteady Flow, Laminar Flow, Suction, Temperature Distribution, Viscous Flow

Scientific paper

In this paper the unsteady laminar free-convection flow of a viscous incompressible fluid, past an accelerated infinite vertical porous plate subjected to a constant suction (or injection) is considered. Numerical results for the skin-friction on the plate are obtained for the class of accelerated motions whose velocity is of the form U0tn where t is time, U0 a constant, and n is a positive integer. The skin friction tends to zero with increasing t when the Grashof number Gr = λ2, the Prandtl number σ = 1, n = 0, and λ > 0 which corresponds to suction.

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