Experimental Studies on Submerged Breakwater for Coastal Protection

This project is an experimental study on submerged breakwater for coastal protection bywave attenuation mechanisms. Basically this project is focusing ondevelopment of an effective submerged breakwater that will help the industry to reduce waveattackat erosion hot spots especially along Malaysia coastline. The effectiveness of this submerged breakwater will hopefully maintain the attractive values of its sandy beaches. The significant parametersto producea minimum transmission coefficient of the wave are width and height ofthe breakwater with respect to its water depth. The main objective of the study is to develop submerged breakwater comprised of a plurality ofmodules that is effective in reducing wave heights. The early stage of the study is focusing on the literature review of the existing submerged breakwaters as well as the proposal of the model design, followed by theconstruction ofthemodules and the laboratory experiments. The experimental study consists ofan experiment for wave period determination also the attenuation performance of proposed model in terms oftransmission coefficient Qin various configurations. From the experimental result, it is found that the proposed model of submerged breakwater is effective in attenuating wave energy in terms ofwave transmission. The number ofoptimum row required to reduce sufficient wave height is three (3). It is better to have a sloping face at the seaward of the submerged breakwater than a vertical face. The wider the submerged breakwater, the better will be the performance and greater value ofrelative depth submergence, /*/# presents better wave energy dissipation.