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The Motion of an Oscillating Aerofoil in a Compressible Free Jet

Published online by Cambridge University Press:  28 July 2016

D. G. Drake
D. G. Drake*
Affiliation:
University of Southampton
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Extract

The supersonic and subsonic jets are both considered by the method used by Miles for an oscillating aerofoil between wind tunnel walls.

The present problem and that of Miles are special cases of the flow past an oscillating aerofoil between porous walls, and provide a useful check for results in the porous wall problem. It may be assumed that the ratio of the change in pressure across a porous wall to the normal velocity at the wall defines a quantity called the porosity parameter, which is a constant at any particular point on the wall. For the special cases of the porosity parameter being everywhere infinite and zero, the porous wall corresponds to the solid wall and the free jet boundary respectively.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 60 , Issue 549 , September 1956 , pp. 621 - 623
Copyright
Copyright © Royal Aeronautical Society 1956

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References

1. Miles, J. W. (1956). The Compressible Flow Past an Oscillating Airfoil in a Wind Tunnel. Journal of the Aeronautical Sciences (in the press).Google Scholar
2. Howarth, L. (1953). Modern Developments in Fluid Dynamics. High Speed Flow, Vol. 1, page 371. Clarendon Press, 1953.Google Scholar