HYDRAULIC CHARACTERISTICS OF ARTIFICIAL REEFS BY RELATING IRREGULAR AND REGULAR WAVES

Abstract

 The results of irregular wave studies are usually organized in the form of mean wave heights or significant wave heights. Thus, both the large waves that dominate the hydraulic phenomena and the smaller waves that do not dominate the hydraulic phenomena are lumped together in the statistics. Therefore, it is sometimes difficult to predict the effects of large waves that cause disasters based on their average values. For regular waves, this study clarifies the hydraulic phenomena around an artificial reef through large scale experiments and numerical calculations by CADMAS-SURF. The mean quantity is obtained as an expected value by assuming the Rayleigh distribution for the wave height appearance distribution of irregular waves. This is then correlated with the case using irregular waves. The hydraulic phenomena caused by several waves during large waves of irregular waves can be understood through results of regular waves.