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Turbulent shear-layer mixing: growth-rate compressibility scaling

Published online by Cambridge University Press:  10 July 2000

M. D. SLESSOR ,
M. ZHUANG  and
P. E. DIMOTAKIS
M. D. SLESSOR
Affiliation:
Allied Signal AMM, 1349 Moffett Park Drive, Sunnyvale, CA 94089, USA
M. ZHUANG
Affiliation:
Mechanical Engineering, Michigan State University, East Lansing, MI 48824, USA
P. E. DIMOTAKIS
Affiliation:
Graduate Aeronautical Laboratories, California Institute of Technology, Pasadena, CA 91125, USA
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Abstract

A new shear-layer growth-rate compressibility-scaling parameter is proposed as an alternative to the total convective Mach number, Mc. This parameter derives from considerations of compressibility as a means of kinetic-to-thermal-energy conversion and can be significantly different from Mc for flows with far-from-unity free-stream-density and speed-of-sound ratios. Experimentally observed growth rates are well-represented by the new scaling.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 414 , 10 July 2000 , pp. 35 - 45
Copyright
© 2000 Cambridge University Press

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