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Experimental investigation into transonic flows over tandem cavities

Published online by Cambridge University Press:  04 July 2016

N. Taborda ,
D. Bray  and
K. Knowles
N. Taborda
Affiliation:
Department of Aerospace, Power and Sensors Cranfield University RMCS, Shrivenham Swindon, UK
D. Bray
Affiliation:
Department of Aerospace, Power and Sensors Cranfield University RMCS, Shrivenham Swindon, UK
K. Knowles
Affiliation:
Department of Aerospace, Power and Sensors Cranfield University RMCS, Shrivenham Swindon, UK
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Abstract

An experimental study was conducted to analyse the pressure distribution along the floor of a cavity, with and without the presence of an upstream tandem cavity, at a constant freestream Mach number of about 0-911. Measurements were made for single cavities and the results compared with those obtained in the presence of an upstream tandem cavity. This comparison was made over a wide range of geometries, covering open to closed classes of cavities with both identical and different dimensions for the two cavities. The effect of the spacing between the two cavities was also studied. The downstream cavity is shown to be significantly affected by the presence of an upstream cavity, with both the overall net static pressure and its gradient being affected, dependent upon the class of cavity geometry and spacing under consideration.

Type
Research Article
Information
The Aeronautical Journal , Volume 105 , Issue 1045 , March 2001 , pp. 119 - 124
Copyright
Copyright © Royal Aeronautical Society 2001 

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