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The Three-Dimensional Turbulent Boundary Layer

Published online by Cambridge University Press:  04 July 2016

D. R. Blackman  and
P. N. Joubert
D. R. Blackman
Affiliation:
University of Melbourne
P. N. Joubert
Affiliation:
University of Melbourne
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Extract

An experimental verification of coles’ postulate of the Law of the Wake in three dimensions has been attempted. This hypothesis, which is strongly supported by experimental evidence in two dimensions, purports to represent the velocity vector in a yawed boundary layer by the sum of two vectors, whose magnitudes are found from the universal law of the wall, and a second universal function, the law of the wake. It has been found that the velocity vector can be represented in this way and the wake function required for this is very similar to Coles’ form. Limitations of the experimental arrangement however prohibited the comparison of vector directions with that proposed by Coles.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 64 , Issue 599 , November 1960 , pp. 692 - 694
Copyright
Copyright © Royal Aeronautical Society 1960

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References

1.Millikan, (1938). A Critical Discussion of Turbulent Flows in Channels and Circular Tubes. Proc. 5th Int. Congress of Applied Mechanics, 1938.Google Scholar
2.Coles, (1956). The Law of the Wake in the Turbulent Boundary Layer. Journal of Fluid Mechanics, Vol. 1, Part 2, 1956.CrossRefGoogle Scholar
3.Hurley, , Keeler, and Trimble, (1955). The Development of How Separations on the Avro 707A Aircraft. A Comparison of Wind Tunnel and Flight Based on the Measurement of Surface Pressures. A.R.L. Aero Note 173, 1955.Google Scholar
4.Johnstone, (1960). On the Three-Dimensional Turbulent Boundary Layer Generated by Secondary Flow. Trans. A.S.M.E. Series D, March 1960.CrossRefGoogle Scholar