Study of Wave Deformation Around Floating Breakwater

Breakwater is a structure to protect waters from wave interference. The structure separates the port basin from the open sea, so that sea waves will not enter the basin. In applying for deep water conditions, floating breakwater is more efficient than conventional types, because it requires less material. Floating breakwater is suitable for soft soils where the strength of the soil is low; and is also good for the environment. The development of floating breakwater has increased significantly in the past decade. This study focuses on the magnitude of the wave transmission coefficient. Two types of floating breakwater were tested, namely FBW Type-1 and FBW Type-2, using physical modeling as well as numerical model (FLOW3D software). The experimental model was carried out in 50 m long of wave flume equipped with a regular wave generator. The study results transmission coefficient ranged from 0.53 to 0.91. Based on the results, therefore more study is needed to get better coefficient.