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Effect of wing nose shape on the flow in a wing/body junction

Published online by Cambridge University Press:  04 July 2016

R. D. Mehta
R. D. Mehta*
Affiliation:
Department of Aeronautics, Imperial College, London
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Summary

A powerful mechanism for the generation of secondary flow, which does not rely on viscous or turbulent stress, is lateral skewing of a shear layer such as that encountered by the body boundary layer in a wing/body junction. For a given entry shear, the characteristics of the secondary flow (a horse-shoe vortex) will depend on the wing nose shape. The effects of three wing nose shapes on the size, position and strength of the horse-shoe vortex have been studied in low-speed flow. As expected, the vortex size and strength increased with nose bluntness; quantitative data describing this effect are presented in this paper. The results include contours of streamwise velocity and secondary velocity plots from which vorticity contours and a non-dimensional circulation were derived. The results should be of use in wing design where this secondary flow needs to be controlled.

Information

Type
Research Article
Information
The Aeronautical Journal , Volume 88 , Issue 880 , December 1984 , pp. 456 - 460
Copyright
Copyright © Royal Aeronautical Society 1984 

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Footnotes

*

Present address: Department of Aeronautics and Astronautics, JIAA, Stanford University, Stanford, California 94305.

References

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