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Screech frequency prediction in underexpanded axisymmetric screeching jets

DSpace at IIT Bombay

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Field Value
 
Title Screech frequency prediction in underexpanded axisymmetric screeching jets
 
Creator CHATTERJEE, A
GHODAKE, D
SINGH, A
 
Subject efficient implementation
numerical-simulation
generation
schemes
 
Description Average shock spacing and average standing wavelength are estimated from computed near-field of axisymmetric underexpanded screeching jets at low supersonic Mach numbers. These are used to predict screech frequencies based on existing formulations which rely either on shock spacing or on standing wavelength. Results obtained suggest that shock spacing and standing wavelength may respectively be dominant length scales for A1 and A2 axisymmetric screech modes observed for axisymmetric jets at low supersonic Mach numbers. This implies that presence of two axisymmetric screech modes in supersonic jet screech could be attributed to the two co-existing length scales in the jet near-field.
 
Publisher MULTI-SCIENCE PUBL CO LTD
 
Date 2011-08-18T20:33:52Z
2011-12-26T12:55:54Z
2011-12-27T05:43:18Z
2011-08-18T20:33:52Z
2011-12-26T12:55:54Z
2011-12-27T05:43:18Z
2009
 
Type Article
 
Identifier INTERNATIONAL JOURNAL OF AEROACOUSTICS, 8(5), 499-510
1475-472X
http://dx.doi.org/10.1260/147547209788549307
http://dspace.library.iitb.ac.in/xmlui/handle/10054/10126
http://hdl.handle.net/10054/10126
 
Language en