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Effect of aft wall slope on cavity pressure oscillations in supersonic flows

Published online by Cambridge University Press:  03 February 2016

N. S. Vikramaditya  and
J. Kurian
N. S. Vikramaditya
Affiliation:
vikram_sri@yahoo.comx, Department of Aerospace Engineering, Indian Institute of Technology Madras, India
J. Kurian
Affiliation:
vikram_sri@yahoo.comx, Department of Aerospace Engineering, Indian Institute of Technology Madras, India
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Abstract

An experimental study of supersonic flow over wall mounted cavities with different aft wall angles is carried out. Unsteady pressure measurements were made on the walls and floor of the cavity. Data analysis was performed on the experimental results using statistical methods. In the case of higher angled cavities, the presence of an upstream traveling acoustic wave could be confirmed. For lower angled cavities (60 degrees and less) where the acoustic wave could not be identified, the flow inside the cavity was more or less stable. Mode switching occurring in higher angled cavities was confirmed by spectrogram studies.

Type
Research Article
Information
The Aeronautical Journal , Volume 113 , Issue 1143 , May 2009 , pp. 291 - 300
Copyright
Copyright © Royal Aeronautical Society 2009 

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