Development of Quasi 3D sediment transport model in wave breaker and swash zone and proposal of effective sediment transport control

建立了波浪破碎区和冲浪区涡粘性垂向分布的数学模型。它可以得到悬沙的垂向剖面。建立了与高阶Boussinesq模型耦合的准三维泥沙数学模型。在山本海岸观测了岬周围的旁路泥沙通量，并建立了该通量的预测模型。结果表明，通过调节封头长度可以有效地控制旁路流量。

Vertical profile of eddy viscosity is modeled in wave breaking and swash zones. It enabled to get vertical profile of suspended sediment. Quasi-3D sediment transport model coupled with the higher order Boussinesq model was developed. Bypass sediment flux around headlands was observed at the Yamamoto coast, the prediction model of which was developed. It is shown the bypass flux is effectively controlled by adjusting the length of the head.