LONGSHORE CURRENT FLOWS IN A WAVE BASIN

P.J. Visser

Abstract


This paper describes the investigation into a method how to adjust the proper longshore current in a wave basin. In this method the basin geometry and the proper recirculation flow (outside wave guides) are determined by minimising the circulation flow (between wave' guides). Using one wave field and one uniform beach the length of the downstream wave guide wall, the distribution of the recirculation flow at the upstream wave guide wall and the recirculation flow were varied. The investigation shows that the adjustment of the longshore current has to be done carefully in order to get uniformity along the beach and the correct magnitude and distribution normal to the beach.

Keywords


longshore current; current; wave basin

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