Experimental Study on Sediment Movement in a Channel with Model Reef

Abstract

An artificial beach has been constructed in coastal region facing to a coral reef. To prevent beach erosion, characteristics of sediment movement on the beach should be investigated in flume experiments. The watervelocity becomes very large with wave breaking zone on the reef. Therefore, the critical amplitudes of velocity on reef should be defined for the promotion of beach protection methods. The-experiment results demonstrate that the critical velocity is related to the shields number.