LABORATORY EXPERIMENTS ON 3-D NEARSHORE CURRENT AND A MODEL WITH MOMENTUM FLUX BY BREAKING WAVES

Proceedings of the International Conference on Coastal Engineering

Koji Hara¹  Akio Okayasu²  Tomoya Shibayama² 

[1] Civil Engineering Division, Taisei Corporation;Department of Civil Engineering, Yokohama National University

关键词: breaking waves;    momentum flux;    nearshore current;    3D current;   

DOI  :  10.9753/icce.v24.%p

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

Laboratory experiments are performed in a wave basin to investigate the characteristics of three dimensional distribution of the nearshore current. Direction and amplitude of the nearshore current significantly change along the vertical axis and have spiral distribution. A quasi 3-D model which gives the 3-D distribution of nearshore current is proposed. Momentum flux due to the large vortexes formed on the front face of breaking waves is included in the model to evaluate the depth averaged current. The model is examined with the experimental results.

【 授权许可】

Unknown