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The Calculation of Heat Transfer Coefficients from Skin Friction Coefficients in the Compressible Laminar Boundary Layer on an Aerofoil

Published online by Cambridge University Press:  07 June 2016

R. E. Luxton
R. E. Luxton*
Affiliation:
Department of Mechanical Engineering, University of Sydney
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Summary

In this note a relation is established between the correlation parameters obtained by Cohen and Reshotko from similar solutions of the compressible laminar boundary layer, and the Pohlhausen-type pressure gradient parameter used in the approximate methods devised by Luxton and Young. A simple graphical procedure is presented to allow heat transfer coefficients to be obtained from known skin friction coefficients in the presence of a pressure gradient. In view of the restrictions of the similar solutions it cannot be claimed a priori that the method gives accurate results. It does, however, reflect the strong dependence of the heat-transfer skin-friction relation on the pressure gradient and, by reference to calculated results published previously, it is suggested that the method may give adequate accuracy under quite severe conditions.

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Type
Research Article
Information
Aeronautical Quarterly , Volume 19 , Issue 3 , August 1968 , pp. 243 - 253
Copyright
Copyright © Royal Aeronautical Society. 1968

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References

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