Hybrid engineering on permeable groins to reduce the longshore current

Abstract

This study aims to determine the effectiveness of hybrid engineering technology to be applied to the groin to reduce longshore currents. The application of hybrid engineering as a breakwater and sediment trap in coastal areas has given good results so that it can be developed in permeable groin structures. The research method used is laboratory experimental with physical modeling to make prototypes and conduct tests on the wave flume to determine changes in current velocity against the existence of a hybrid engineering structure with several model scenarios by changing the characteristics of brushwood groin such as length and distance between groin to surface height. water. The expected result of this study is an engineering model of the permeable groin that can function as an efficient and effective hybrid engineering in reducing longshore currents.