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Prediction of vortex lift of non-planar wings by the leading-edge suction analogy

Published online by Cambridge University Press:  04 July 2016

B. C. Hardy  and
S. P. Fiddes
B. C. Hardy
Affiliation:
Aerodynamics Department, Royal Aircraft Establishment, Farnborough
S. P. Fiddes
Affiliation:
Aerodynamics Department, Royal Aircraft Establishment, Farnborough
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Summary

A three-dimensional panel method has been used to calculate edge-suction forces for thin sharp-edged wings in incompressible flow. The suction forces have been used to estimate the vortex lift on the wings by means of the leading-edge suction analogy due to Polhamus.

The results for planar wings are in acceptable agreement with other methods based on the suction analogy. A limited comparison with results from experiments for non-planar wings revealed good prediction of lift and drag increments associated with the deflection of leading and trailing edge flaps for ‘conventional’ wings of high sweep, but only moderate agreement for a grossly non-planar configuration.

Type
Research Article
Information
The Aeronautical Journal , Volume 92 , Issue 914 , April 1988 , pp. 154 - 164
Copyright
Copyright © Royal Aeronautical Society 1988 

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Footnotes

*

Now in the Department of Aerospace Engineering, University of Bristol.

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