DEVELOPMENT OF A CURTAIN-WALLED REFLECTION WAVE DISSIPATER WITH AERATION ACTIVATION FUNCTIONS

Abstract

In harbors, the sheltered water basin from wave actions is usually required for berthing ships safely to piers. However, the construction of harbor breakwaters for the basin tranquility may be responsible for reducing seawater circulations in the basin and often causes the difficulty of seawater exchange between the inside and outside harbor.
In this study, in order to improve the seawater quality in a harbor, a new type of reflection wave dissipater from piers and sea walls is developed. Especially, for activating the aeration of basin water, we have used wave interaction process with the dissipater to activate the aeration of the basin water. The piston mode wave resonance in the water chamber of the dissipater is a main driving force to activate the entrapment and diffusion of air bubbles to the water. Both the functions of wave energy dissipation and activation of the aeration by a new dissipater are examined experimentally and theoretically.