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A New Empirical Relationship Between The Form-Parameters H32 and H12 in Boundary Layer Theory

Published online by Cambridge University Press:  04 July 2016

Hans Fernholz
Hans Fernholz*
Affiliation:
Engineering Laboratory, University of Cambridge
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Extract

Provided the relationship between the form-parameters H32 and H12is known, the two-dimensional turbulent boundary layer may be calculated by means of the approximate theories of Walz and Truckenbrodt without the necessity for an explicit law for the velocity profile. This relationship H32=f(H12) introduces the influence of the velocity profiles into the calculation. It is the third empirical relationship—beside those for skin friction and dissipation— which is needed to solve the momentum and energy integral equations. The formulae or curves for H32=f(H12) which are given in published papers show considerable deviations from each other so that it was felt necessary to investigate this relationship again. Fig. 1 shows the different curves.

Information

Type
Technical Notes
Information
The Aeronautical Journal , Volume 66 , Issue 621 , September 1962, pp. 588 - 589
Copyright
Copyright © Royal Aeronautical Society 1962

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References

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