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Mean and fluctuating flow measurements of a fully-developed, non-adiabatic, hypersonic boundary layer

Published online by Cambridge University Press:  29 March 2006

F. K. Owen ,
C. C. Horstman  and
M. I. Kussoy
F. K. Owen
Affiliation:
United Aircraft Research Laboratories, East Hartford, Connecticut 06108
C. C. Horstman
Affiliation:
Ames Research Center, NASA, Moffett Field, California 94035
M. I. Kussoy
Affiliation:
Ames Research Center, NASA, Moffett Field, California 94035
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Abstract

Extensive boundary-layer measurements have been made on a cone-ogive-cylinder model at a free-stream Mach number of 7·0 and momentum-thickness Reynolds number of 8500. Mean flow transformations and calculated turbulence correlations are presented which are in good agreement with previous incompressible results. New quantitative turbulence measurements including measurements of the first higher moment and probability density of fluctuations in mass flow and total temperature in hypersonic flow are also presented. The higher moment and probability density data show that the characters of the fluctuation modes of the mass flow and total temperature are significantly different in the wall region and in the outer part of the boundary layer. These differences together with data on the turbulence scale and lifetime obtained from autocorrelation and space-time correlation measurements are discussed.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 70 , Issue 2 , 29 July 1975 , pp. 393 - 413
Copyright
© 1975 Cambridge University Press

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