A NEW TYPE BREAKER FORMING A GIANT JET AND ITS DECAYING PROPERTIES

Proceedings of the International Conference on Coastal Engineering

Akihide Tada²  Hiderni Mutsuda¹  Atsushi Oya¹  Takashi Yasuda¹  Tadashi Fukumoto² 

[1] Dept. of Civil Eng., Gifu Univ.;Tech. Res. Inst., Nishimatsu Construction Co. Ltd.

关键词: breaking waves;    jet;    giant jet;    breaker decay;   

DOI  :  10.9753/icce.v25.%p

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

Experiments in a wave flume(lm x 2m x 65m) with 16 wave gages and numerical simulations using a fully nonlinear BIM(Boundary Integral Method) in a super-computer(VP2600) are conducted to make clear the characteristics and occurrence condition of a new type breaker. Further, its deformation and wave height decay after breaking are investigated. It is shown that the new type breaker forms a giant jet with the size exceeding three times of the maximum jet size of usual type breakers and therefore is very efficient to wave control because of strong turbulence excited by plunging of the giant jet and the resultant remarkable absorption.

【 授权许可】

Unknown