Abstract

This study is intended to discuss the sound pressure generated by the wave-submerged structure interaction, which is considered to play an important role on fish gathering function of an artificial fish reef. Laboratory experiments were carried out to measure a sound pressure as well as the velocity and free surface variation. In the experiments, idealized simple structures were employed and flow visualization was also conducted. It is confirmed that the installation of the submerged structure generates the sound pressure on several frequency domains. Moreover, it is revealed that the variation of sound pressure depends much on vortex formation and its behavior.

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