直線上に分布するスペクトルを入射波条件とした多方向不規則波浪変形時系列解析

抄録

Wave prediction models based on the energy balance equation are suitable for applications involving a large sea area. Time domain models like the Boussinesq wave model can estimate wave fields in detail for a not so large area. As a first step to link together these models seamlessly, this study presents a time domain analysis of multidirectional random wave transformations, in which the incident wave spectrum are intermittently distributed over the rectilinearity. Multidirectional random wave transformation over a spherical shoal is numerically simulated by a Boussinesq model with the present method which starts calculation from cross sections around the shoal. The results on the significant wave height distributions and wave spectrum are compared to those calculated by an energy balance equation model in the whole area.