PHYSICAL MODELING FOR MEASURING THE EFFECTIVENESS OF SINGLE CURTAIN PILE FOUNDATION BREAKWATER IN INTERMEDIATE WATER DEPTH

Abstract

A combined Curtain and Pile Foundation's breakwater called the Single Curtain Pile Foundation Breakwater (SCPFB), was designed to dissipate wave energy in an intermediate water depth instead of constructing a rubble mound-type breakwater. ( CT ). The physical modeling of the SCPFB is was conducted at the Ocean Wave Research Laboratory in Institut Teknologi Bandung in a 2D wave flume to measure the breakwater’s transmission coefficient in the intermediate water depth condition The waves generated in the wave flume were monochromatic. The scaling applied the principle of Froude similarity, where the Froude number of the model equaled to the Froude number of the prototype. Wave heights and wave periods data were observed by both visual observation and wave probes. The incoming wave heights and transmitted wave heights before and after the SCPFB, respectively, were measured and processed to obtain the CT . The relationships between CT and non-dimensional variables such as the relative incident wave steepness, water depth, and curtain draft were obtained. Comparisons with similar research are shown.