期刊论文详细信息
Proceedings of the International Conference on Coastal Engineering
VORTEX FORMATION IN PLUNGING BREAKER
Y. Tada1  T. Sakai1  T. Mizutani2  H. Tanaka1 
[1] Dept. of Civil Eng., Kyoto Univ.;Res. and Develop. Center, Kawasaki Steel Corp.
关键词: vortex formation;    wave breaking;    plunging breaker;    vortex;   
DOI  :  10.9753/icce.v20.%p
学科分类:建筑学
来源: Coastal Engineering Research Council
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【 摘 要 】

By a flow visualization of a plunging breaker on 1/20 slope beach in a wave tank, an existence of 2nd and 3rd horizontal vortices(Miller, 1976) and slanting vortex (Nadaoka et al., 1986) is confirmed. A MAC method is applied to simulate a violent motion after an impinging of a jet from a crest of a plunging breaker on the trough surface. The calculated maximum water particle velocity in the jet is found to reach three times the linear long wave celerity. Values of circulation of the first four horizontal vortices are calculated and their changes in time are discussed.

【 授权许可】

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