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The effect of a sequence of cavities on boundary-layer separation at M = 8.2

Published online by Cambridge University Press:  04 July 2016

Z. He
Affiliation:
China Aerodynamics Research and Development CenterSichuan, China
J. Xiong
Affiliation:
China Aerodynamics Research and Development CenterSichuan, China
C. Lebas
Affiliation:
College of AeronauticsCranfield University, UK
J. L. Stollery
Affiliation:
College of AeronauticsCranfield University, UK

Extract

Hypersonic projectiles are sometimes launched using a castellated sabot which links with matching cavities in the missile. After launch and the removal of the sabot the boundary layer over the vehicle flows past these cavities which act as a kind of roughness. Experiments were made to discover the effect of this ‘roughness’ on the flow over a flap or flare placed downstream of the cavities. Tests were made with both laminar and turbulent boundary layers, the turbulent flow being induced by vortex generators placed near the nose of the models.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society 2002 

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References

1. Lebas, C. Influence of Large Scale Roughness on Boundary-Layer and Compression Corner, MSc Thesis, Cranfield University, September 1999.Google Scholar
2. Needham, D.A. Laminar Separation in Hypersonic Flow, PhD Thesis, Imperial College, London University, August 1965. or alternativelyGoogle Scholar
Needham, D.A. and Stollery, J.L. Hypersonic studies of incipient separation and separated flows, AGARD CP No. 4 Separated Flows Part I, 1966.Google Scholar
3. Holden, M.S. and Wadhams, T.P. Code validation study of laminar shock/boundary-layer and shock/shock interactions in hypersonic flow, Part A: Experimental measurements, AIAA Paper 2001–1031, January 2001.Google Scholar