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Experimental study of standing edge waves

Published online by Cambridge University Press:  21 April 2006

Harry H. Yeh
Harry H. Yeh
Affiliation:
Department of Civil Engineering, University of Washington, Seattle, WA 98195, U.S.A.
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Abstract

Fundamental properties of standing edge waves are investigated experimentally in a physical model with a uniformly and mildly sloping beach with a straight shoreline. Using a unique experimental set-up, quantitative measurements for the detailed nonlinear effects of edge waves are obtained. The experimental results are generally in good agreement with the theoretical predictions (Guza & Bowen 1976a and Rockliff 1978) including the offshore profile, dispersion relation, and the outgoing radiated waves generated by the nonlinear interaction of edge waves. The observed behaviour of the excitation process of ‘forced’ edge waves by the wavemaker can be predicted qualitatively by the inviscid theory, whereas the damping process of ‘free’ edge waves is governed by the viscous effects, i.e. the theoretical (inviscid) prediction totally underestimates the actual damping phenomenon in the laboratory.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 168 , July 1986 , pp. 291 - 304
Copyright
© 1986 Cambridge University Press

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