2003 年 19 巻 p. 77-82
Recent advanced computer technology encourages development of numerical simulation method of complex flow regime. Then, recent numerical simulation methods are able to simulate interactions between waves and coastal structures even for cases of rotational motions of viscid fluid. This kind of numerical simulation method has been applied to simulate mainly the interaction between waves and structure with vertical face represented by the breakwater. In the simulations, wave deformation, pressure on the face and wave overtopping have been analyzed, and acceptable reliabilities have been confirmed. Recently, the numerical simulation method has been developed to the three-dimensional problem for wave-structure interaction, where the vortex formed behind the structure is important. In this paper, applicability of the numerical simulation method in the estimation of the wave force on the structure is discussed. Moreover, the latest results of the application of the numerical simulation to the wave-structure interaction with asymmetric feature where the transverse force is significant are presented here.