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Measurements of heat transfer in separated highenthalpy dissociated laminar hypersonic flow behind a step

Published online by Cambridge University Press:  26 April 2006

S. L. Gai ,
N. T. Reynolds ,
C. Ross  and
J. P. Baird
S. L. Gai
Affiliation:
University College, UNSW, Australian Defence Force Academy, Canberra, Australia
N. T. Reynolds
Affiliation:
University College, UNSW, Australian Defence Force Academy, Canberra, Australia
C. Ross
Affiliation:
University College, UNSW, Australian Defence Force Academy, Canberra, Australia
J. P. Baird
Affiliation:
University College, UNSW, Australian Defence Force Academy, Canberra, Australia
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Abstract

Measurements of heat transfer in the separated region behind a rearward-facing step in a hypersonic high-enthalpy stream, are described. The range of enthalpies considered was much greater than those reported previously in the literature. High-response surface thermocouples were used to measure the heat-transfer rates. Flow visualization by way of interferograms, with a Mach-Zehnder interferometer, were obtained and improved visualization was further facilitated by digitizing the interferograms and using Fourier analysis to determine fringe positions. This then provided a phase map of the flow region in which the phase was colour coded to emphasize flow characteristics.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 199 , February 1989 , pp. 541 - 561
Copyright
© 1989 Cambridge University Press

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