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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.

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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