2020 Volume 76 Issue 2 Pages I_847-I_852
In this study, model experiments were conducted using a two-dimensional wind-wave flame to clarify the generation process of splashes due to wave-overtopping at a vertical seawall. In the model experiment, the wave run-up splashes were visualized by backlight method and taken with a high-speed camera. Four individual waves in an irregular wave train which have different run-up heights and wave-overtopping quantity were selected for measurement. Wind speed was set to 3.0, 4.5 and 6.0 m/s. From the experimental data, the generation process of splashes was clarified. In the process of a wave run-up, relatively large water mass is swelled up due to wind like a balloon, and consequently bursts. The burst generates a large number of small splashes. The number of splashes increases as the wind speed and the run-up height increase, and the small splashes are dispersed over wider area behind the seawall.
PROCEEDINGS OF COASTAL ENGINEERING, JSCE
PROCEEDINGS OF THE JAPANESE CONFERENCE ON COASTAL ENGINEERING
