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Unsteady laminar compressible boundary-layer flow at a three-dimensional stagnation point

Published online by Cambridge University Press:  12 April 2006

M. Kumari  and
G. Nath
M. Kumari
Affiliation:
Department of Applied Mathematics, Indian Institute of Science, Bangalore 560012
G. Nath
Affiliation:
Department of Applied Mathematics, Indian Institute of Science, Bangalore 560012
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Abstract

Unsteady laminar compressible boundary-layer flow with variable properties at a three-dimensional stagnation point for both cold and hot walls has been studied for the case when the velocity of the incident stream varies arbitrarily with time. The partial differential equations governing the flow have been solved numerically using an implicit finite-difference scheme. Computations have been carried out for two particular unsteady free-stream velocity distributions: (i) an accelerating stream and (ii) a fluctuating stream. The results indicate that the variation of the density-viscosity product across the boundary layer, the wall temperature and the nature of stagnation point significantly affect the skin friction and heat transfer.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 87 , Issue 4 , 29 August 1978 , pp. 705 - 717
Copyright
© 1978 Cambridge University Press

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