سال انتشار: ۱۳۸۱
محل انتشار: پنجمین همایش بین المللی سواحل، بنادر و سازه های دریایی
تعداد صفحات: ۳
Ahmad Shanehsaz-zadeh – Department of civil Engineering Imperial collego- London SW7 2BU
Patrick Holmes – Department of Civil Engineering Imperial college- London SW7 2BU
The flow over the beach is the swash zone due to incident waves is different from the deeper water. Here, the near bed velocity profile, which is the agent of sediment transport, it highly asymmetric with abrupt acceleration in up-rush and rather smooth change in backwash (Shanehsaz-zadeh et al 2001). In this study, the behaviour of sediment particles under asymmetric waves were experimentally investigated, in order to improve insight nto sediment process involved in the swash zone. The destination of particles (jump length) and the number of particles that move (weight). were measured under the action of individual asymmetric waves. This attempt can be considered as a basic research to enhance the accuracy of the sediment transport modelling in the coastal area, especially in the swash zone.