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Transition and the Spread of Turbulence on a 60° Swept-Back Wing

Published online by Cambridge University Press:  04 July 2016

N. Gregory
N. Gregory*
Affiliation:
Aerodynamics Division, National Physical Laboratory
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Extract

Two interesting flow phenomena have been observed during the course of some transition measurements carried out on a swept-back wing with a curved tip. Firstly, the influence of leading-edge sweep angle on the type of instability responsible for transition has resulted in two distinct types of transition occurring simultaneously over different portions of the wing under certain critical conditions. Secondly, unlimited spanwise turbulent contamination of the flow was observed with an excrescence located close to the leading edge. The circumstances in which this occurred are believed to be somewhat exceptional, although much further work is desirable on this point.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 64 , Issue 597 , September 1960 , pp. 562 - 564
Copyright
Copyright © Royal Aeronautical Society 1960

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References

1.Garner, H. C. and Walshe, D. E. (1959). Pressure distribution and surface flow on 5 per cent and 9 per cent thick wings with curved tip and 60° sweepback. Part I Experimental pressure distribution. A.R.C. 20,982, 1959.Google Scholar
2.Anscombe, A. and Illingworth, L. N. (1952). Wind-tunnel observations of boundary-layer transition on a wing at various angles of sweepback. A.R.C. R & M 2968, May 1952.Google Scholar
3.Gregory, N. and Walker, W. S. Experiments on the effect of suction on the flow due to a rotating disk. A.R.C. 20,856. To be published in the Journal of Fluid Mechanics.Google Scholar
4.Gregory, N., Stuart, J. T. and Walker, W. S. (1955). On the stability of three-dimensional boundary layers with application to the flow due to a rotating disk. Phil. Trans. (A) 248, 155, July 1955, and Proc. N.P.L. Symposium on Boundary Layer Effects in Aerodynamics. H.M.S.O., 1955.Google Scholar
5.Schubauer, G. B. and Klebanoff, P. S. (1955–56). Contributions on the Mechanics of Boundary-Layer transition. N.A.C.A. Report No. 1289, 1956, also Proc. N.P.L. Symposium on Boundary Layer Effects in Aerodynamics. H.M.S.O., 1955.Google Scholar