NUMERICAL STUDY ON EFFECT OF WAVING BED ON THE SURFACE WAVE

The effect of the waving bed on the surface wave was investigated. The wave equation was reduced from the potential flow theory with the perturbation technique, and then was solved by using the pseudo-spectral method. The waterfall of the surface wave was simulated with the Matlab. It is shown that...

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Bibliographic Details
Published in:Journal of Hydrodynamics 2006-08, Vol.18 (4), p.464-468
Main Authors: Wu, Zheng-ren, Cheng, You-liang, Wang, Song-ling
Format: Article
Language:English
Subjects:
假光谱法
波阻断
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Summary:The effect of the waving bed on the surface wave was investigated. The wave equation was reduced from the potential flow theory with the perturbation technique, and then was solved by using the pseudo-spectral method. The waterfall of the surface wave was simulated with the Matlab. It is shown that for the waving bed, an additional harmonic wave appears on the surface together with the solitary wave existing for the non-waving bed, and two kinds of waves do not interfere with each other. With the development of time, the waveform for the waving bed is kept invariable, and just the amplitude is reduced gradually. Wave-breaking phenomenon for the non-waving bed does not appear, so the waving bed seems useful to prevent the breaking of the wave.
ISSN:1001-6058
1878-0342
1000-4874
DOI:10.1016/S1001-6058(06)60121-2