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Surf-skimmer planing hydrodynamics

Published online by Cambridge University Press:  26 April 2006

E. O. Tuck
Affiliation:
University of Adelaide, South Australia 5001, Australia
A. Dixon
Affiliation:
University of Adelaide, South Australia 5001, Australia Present address: School of Engineering, University of Exeter, North Park Road, Exeter EX4 4QF, UK.

Abstract

Matched asymptotic expansions are used to analyse the flow past a two-dimensional planing surface in shallow water. A simple momentum conservation relation is obtained connecting leading-edge height, trailing-edge height, and ambient water depth, from which the (initially unknown) wetted length can be determined. This relationship is confirmed by an explicit solution for the flow in the splash zone near the leading edge. The theory is used to discuss the dynamics of a freely skimming board carrying a given weight whose point of application is a given distance ahead of the trailing edge.

Type
Research Article
Copyright
© 1989 Cambridge University Press

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References

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