Wave Diffraction around Breakwater

Abstract

A three-dimensional, physical model study of wave diffraction around a semi-infinite breakwater was conducted using a directional spectral wave generator. Both regular and irregular waves with narrow and broad frequency and directional spreading were simulated. Surface elevations were measured in the lee of the breakwater, within a radius of three wavelengths of the tip. Comparisons with regular and irregular wave prediction methods indicate the strengths and limitations of the methods for various wave conditions, and the importance of directional spreading. Data are given to assist other investigators in testing numerical models.