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The Upstream Influence of Base Bleed on Surface Pressures and Skin Friction

Published online by Cambridge University Press:  04 July 2016

B. J Bellhouse  and
C. J. Wood
B. J Bellhouse
Affiliation:
Department of Engineering Science, University of Oxford
C. J. Wood
Affiliation:
Department of Engineering Science, University of Oxford
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Extract

—Measurements of pressure distribution and skin friction have been made on an 11% thick aerofoil in the presence of a variable base bleed flow. These tests show that the effects of bleed decay rapidly upstream of the base and are measurable only over the rear 40% of the chord. The integrated profile drag values also confirm that wake traverse measurements are subject to error in a strong vortex street.

Type
Research Article
Information
The Aeronautical Journal , Volume 69 , Issue 659 , November 1965 , pp. 789 - 791
Copyright
Copyright © Royal Aeronautical Society 1965

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References

1.Wood, C. J.The Effect of Base Bleed on a Periodic Wake. Journal of the Royal Aeronautical Society, Vol. 68, No. 643, July 1964.Google Scholar
2.Maull, D. J. and Bearman, P. W.The Measurement of the Drag of Bluff Bodies by the Wake Traverse Method. Journal of the Royal Aeronautical Society, Vol. 68, No. 648, December 1964.Google Scholar
3.Bellhouse, B. J. and Schultz, D. L. Determination of Mean Skin Friction, Separation and Transition in Low Speed Flow with a Thin Film Heated Element. To be published.Google Scholar
4.Schlichting, H.Boundary Layer Theory. Pergamon Press, 1955.Google Scholar