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The hypersonic laminar boundary layer near sharp compression and expansion corners

Published online by Cambridge University Press:  29 March 2006

A. W. Bloy  and
M. P. Georgeff
A. W. Bloy
Affiliation:
von Kármán Institute for Fluid Dynamics, Rhode-Saint-Genese, Belgium
M. P. Georgeff
Affiliation:
Education Department, La Troba University, Bundoora, Victoria, Australia
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Abstract

The momentum integral method of Klineberg is shown to provide a good description of the major characteristics of two-dimensional laminar viscous-inviscid interactions a t hypersonic speeds. Surface pressure and heat-transfer-rate measurements were made for sharp compression and expansion corners at Mach 12.2 and are compared with the theoretical predictions. The agreement is found to be good for attached, incipient and fully separated flows.

Some theoretical comparisons between methods based on the Klineberg formulation are made which suggest that the full boundary-layer equations are well described using integral methods that incorporate the energy equation. It is further shown that the properties associated with the stability of the governing differential equations are mathematical properties of the analytical model and should not be associated with any physical characteristics of the boundary layer.

A correlation of hypersonic, cold-wall, incipient separation data is also presented.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 63 , Issue 3 , 29 April 1974 , pp. 431 - 447
Copyright
© 1974 Cambridge University Press

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