Experimental study on focused wave breaking on an inclined plate

Abstract

This study conducts an experimental investigation into the impact of focused wave breaking on an inclined plate, examining characteristics including wave shape, acoustic properties, and impact pressure. The wave's pressure characteristics are primarily dictated by the patterns of wave impact. Variations in the pattern of wave impact are observed with changes in the focal position of the wave group and the inclination of the plate. The position of maximum impact, located near the Still Water Level (SWL), experiences substantial upward or downward shifts corresponding to the plate's inclination. Active acoustic phenomena occur during the interaction between fluid, gas, and solid when waves impact the inclined plate. The sound spectrum indicates an increase in the higher frequency components of sound when compared to wave breaking. The Elementary Loading Processes (ELPs) accurately represent the impact pressure characteristics observed on the inclined plate. The characteristics of impact pressure display high variability across multiple repeated experiments. The differences in impact characteristics under varying plate inclinations can be reflected in the pressure-impulse.