안벽과 부유체 사이의 Gap flow에 관한 실험적 연구

Abstract

In this research, experimental study on the gap flow between floaters and quay wall has been conducted at the 2-dimensional wave tank. At first, the wave amplitude and natural frequency of the piston mode which could happen at the gap flow have been confirmed when the umber of floater is one and two near the quay wall. Next, the wave amplitude is compared to each other when the section has rectangular shape or the bottom of section has constant curvature at rectangular shape. The change of shape has made the natural frequency be moved slightly and the viscous damping be reduced. Thus, the wave amplitude near the natural frequency has been also changed. In all cases at the experimental setting, two gap distance have been used and it has been confirmed that the property of gap flow is different at each gap distance.