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The experimental wave resistance of an accelerating two-dimensional pressure distribution

Published online by Cambridge University Press:  29 March 2006

Lawrence J. Doctors
Lawrence J. Doctors
Affiliation:
School of Mechanical and Industrial Engineering, University of New South Wales, Kensington
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Abstract

A series of experiments designed to measure the wave resistance of an accelerating two-dimensional air-cushion vehicle is described. A model was towed at a constant acceleration from rest over water of various depths. In addition, the effects of different levels of acceleration and different cushion pressures were examined. The results are compared with linearized potential-flow theory and show particularly encouraging agreement. The predicted humps and hollows in the curve of wave resistance vs. time are verified, but with a small shift with respect to time. Also, the theoretical region of negative wave resistance in water of finite depth is demonstrated.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 72 , Issue 3 , 9 December 1975 , pp. 513 - 527
Copyright
© 1975 Cambridge University Press

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