Author(s): I. T. Selezov; M. I. Zheleznyak
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Abstract: The interactions of cnoidal and solitary waves with a vertical wall are inves tigated us ing Bouss inesque type equations. Derivation of these equa tions by perturbation expansion of ve locity potential over powers 0 the small parameter is presented. In the case of large amplitude waves the numerical results indicate that during wave impact on a wall the wave force and the water surface elevation have maximum values in. the dif- ferent ins tants. Due to changes in wave parameters after wave-wall interactions the tempora l distri buti ons of the pressure and the elevation at a wall have asymmetrical pattern respectively to the moment of the ma- ximum run-up. It is shown that the s ame changes exert definitive influence on sea-bottom evolution near wall. In the case of cnoidal wave interactions with a wall the crests of simulated bedforms are disposed under nodes of water surface envelopes. Numerical results are in reasonable agreement with laboratory experimental data.
Year: 1985