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The influence of roughness trips upon boundary-layer transition Part 2. Characteristics of single spherical trips

Published online by Cambridge University Press:  04 July 2016

J. C. Gibbings ,
O. T. Goksel  and
D. J. Hall
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Summary

Following Part 1, experimental data is given for the boundary-layer flow past single roughness trips of spherical shape. Correlations are given for the start and end of transition, for the recovery position and for the effective origin of the turbulent layer. There is evidence of a spanwise array of vortices which are found to influence both the downstream turbulent layer and the wedge growth of turbulence.

Type
Research Article
Information
The Aeronautical Journal , Volume 90 , Issue 899 , November 1986 , pp. 357 - 367
Copyright
Copyright © Royal Aeronautical Society 1986 

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Footnotes

*

Department of Mechanical Engineering. The University of Liverpool.

**

Middle East Technical University, Gaziantep, Turkey.

***

Warren Springs Laboratory, Letchworth.

References

Note on page 357 † References are listed in Part 3.

Note on page 357 †† A study of the influence of roughness upon separation has been completed and will be reported separately.