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The Manipulation of the Boundary Layer

Published online by Cambridge University Press:  28 July 2016

E. G. Richardson
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Extract

In this paper I have endeavoured to give an account of the various methods which have been employed in the past ten years to alter—for better or worse— the conditions in the boundary layer of a body in turbulent flow. I have refrained from speaking of “ control ” in reference to the-boundary layer, since in the minds of most people, this implies an amelioration of the flow and a reduction of drag. As will appear in what follows, some of the devices in which I and other experimenters have been concerned have just the opposite effect. Nevertheless, following the principles current in clinical research in medicine, I think we should find both what conditions will cause “ deterioration ”—if one may use the term—as well as those which will cause “ improvement ” of the flow round a body, if we are to progress in our knowledge of the state of affairs in the boundary layer. Working rather on my own in aerodynamics and not being committed to any rigid programme of research, I have followed my bent to explore unorthodox paths of experiment, the results of which I present with some diffidence in the hope that engineers may pursue them further with better equipment. I am afraid I have not gone deeply into the vexed question of the efficiency—in the engineering sense—of the devices I am going to describe to you, since, as a physicist that—nevertheless, important—aspect of the question does not interest me.

Type
Proceedings
Information
The Aeronautical Journal , Volume 42 , Issue 333 , September 1938 , pp. 816 - 838
Copyright
Copyright © Royal Aeronautical Society 1938

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References

1. Schrenck, . Z.F.M., 17, 366 (1926).Google Scholar
2. Schrenck, . Luftfahrtforschung, 12, 11 (1935).Google Scholar
3. Reid, and Bamber, . N.A.C.A. Tech. Note No. 286.Google Scholar
4. Abbott, . N.A.C.A. Tech. Note No. 371.Google Scholar
5. Handley Page, . J. Roy. Aero. Soc, Aug., 1928.Google Scholar
6. Townend, . J. Roy. Aero. Soc, 34, 813 (1930).Google Scholar
7. Richardson, . J. Roy. Aero. Soc, 35, 29 (1931).Google Scholar
8. Richardson, . R. & M. No. 1368 (1931).Google Scholar
9. Zijnen, . N.A.C.A. Tech. Note No. 411 (1926).Google Scholar
10. Richardson, . J. expt. Biol., 13, 63 (1936).Google Scholar
11. Richardson, . Phil. Mag., 7, 681 (1937).Google Scholar
12. Piercy, and Winny, . Phil. Mag., 16, 390 (1933).Google Scholar
13. Richardson, . Proc. Phys. Soc, 49, 479 (1937).Google Scholar
14. Fage, and Warsap, . R. & M. 1283 (1929).Google Scholar
15. Estel, . Inaugural Dissertation, Leipzig (1936).Google Scholar
16. Carrick, . N.A.C.A. Report No. 567 (1936).Google Scholar
17. Richardson, and Tyler, . Phys. Z., 13, 509 (1931).Google Scholar
18. Piercy, and Richardson, . Phil. Mag., 9, 1038 (1930).Google Scholar