Abstract
A floating breakwater has various wave-dissipation mechanisms such as reflection, wave breaking of the incident wave, resonance of radiation wave due to motions of floating body, vortex formation and shedding around the structure. The understanding of these fundamental wave dissipation mechanisms is essential in designing a new-type floating breakwater. In this study, basic wave-control performances for rectangular and circular floating bodies, which are anchored to the bottom with inclined-tension mooring line, were investigated using experimental models. Furthermore, the motions of floating body and flow fields were examined through image analysis. Experimental results show that the motions of floating body and flow fields greatly depend on the geometry of a floating breakwater and its crown depth, and they are closely related to wave control performance.
