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The Effect of a Root Gap on the Aerodynamic Forces of a Slender Delta Wing in Oscillatory Pitching Motion

Published online by Cambridge University Press:  07 June 2016

M. Judd
M. Judd*
Affiliation:
Department of Aeronautics and Astronautics, University of Southampton
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Summary

An investigation of the effect of a root gap is extended to the oscillatory pitching motion of a slender wing. Potential theory is used and the unsteady forces are shown to be reduced by the gap as drastically as the steady. These results cast doubt on measurements made by the technique of half-model testing. Viscous flow in the gap is discussed with reference to the possible types of model mount. The effect of viscosity may be to reduce the gap loss, but the extent of the improvement is uncertain.

Type
Research Article
Information
Aeronautical Quarterly , Volume 14 , Issue 3 , August 1963 , pp. 299 - 310
Copyright
Copyright © Royal Aeronautical Society. 1963

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References

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