LONG PERIOD WAVE AND SUSPENDED SAND TRANSPORT EN THE SURE ZONE

Proceedings of the International Conference on Coastal Engineering

Akio Okayasu¹  Tomoya Shibayama¹  Mikio Kashiwagi¹ 

[1] Department of Civil Engineering, Yokohama National University

关键词: surf zone;    long period waves;    suspended sediment;    sediment transport;   

DOI  :  10.9753/icce.v23.%p

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

The effect of long period wave to local sand transport rate in the surf zone is analyzed by laboratory and numerical experiments. In the laboratory experiment, surface profile, near-bottom velocity and suspended sand concentration are measured simultaneously and resultant net sand transport rate is measured by mass difference during the experimental runs. It appears that the net sand transport rate is determined by three driving forces which are undertow, long wave and short wave. In mild slope condition, the effect of long wave becomes large. In order to simulate this process, a new numerical model is formulated.

【 授权许可】

Unknown