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Experiments on the Laminar Flow in a Rectangular Streamwise Corner

Published online by Cambridge University Press:  07 June 2016

H.A. El-Gamal  and
W.H. Barclay
H.A. El-Gamal
Affiliation:
University of Alexandria
W.H. Barclay
Affiliation:
University College London
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Summary

The results of measurements in the flow along a rectangular corner are presented in the form of velocity profiles. The profiles form two sets: one for flow in a slightly favourable streamwise pressure gradient and one for flow when the pressure gradient is ‘practically zero’. The appearance of the profiles is quite different from that of previously reported experimental work and it is suggested here that the primary cause of this is the different type of corner leading edges used in each case. The flow appears to be only marginally stable and even very slightly changed entry conditions caused by alterations in the leading edge geometry may have a marked effect on the profiles further downstream. The new results are consistent with the notion of corner layer similarity (an implication in every attempted theoretical solution) but there remains a significant difference between the experimental results and the more reliable theoretical solutions available.

Type
Research Article
Information
Aeronautical Quarterly , Volume 29 , Issue 2 , May 1978 , pp. 75 - 97
Copyright
Copyright © Royal Aeronautical Society. 1978

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References

1 Oman, R. The three-dimensional laminar boundary layer along a corner. Ph.D. thesis, Department of Mechanical Engineering, M.I.T., 1959.Google Scholar
2 Wallis, B.W. Some measurements of the laminar boundary layer in the flow along a corner. M.Phil, thesis, University of London, 1968.Google Scholar
3 Zamir, M. Boundary layer in a streamwise corner. Ph.D. thesis, University of London, 1968.Google Scholar
4 W.H., Barclay Laminar flow in a streamwise corner. Ph.D. thesis, University of London, 1971.Google Scholar
5 Zamir, M. and Young, A.D. Experimental investigation of the boundary layer in a streamwise corner. Aeronautical Quarterly, Vol. 21, Pt.4, pp. 313–339, 1970.Google Scholar
6 Barclay, W.H. Experimental investigation of the laminar flow along a straight 135° corner. Aeronautical Quarterly, Vol. 24, Pt.2, pp. 147–154, 1973.Google Scholar
7 El-Gamal, H.A. Laminar flow along a corner with boundary layer suction. Ph.D. thesis, University of London, 1977.Google Scholar
8 Dhawan, S. Direct measurements of skin friction. NACA Technical Note 2567, 1952.Google Scholar
9 Rubin, S.G. and Grossman, B. Viscous flow along a corner: Part I Numerical solution of corner layer equations. Quart. Appl. Math., Vol. 29, No.2, pp. 169–186, 1971.Google Scholar
10 Desai, S.S. and Mangier, K.W. Incompressible laminar boundary layer flow along a corner formed by two intersecting planes. RAE Technical Report 74062, pp. 1–99, 1974.Google Scholar