基于改进型Boussinesq方程的二维波浪数值模型

基于改进型Boussinesq方程，在非交错网格下，建立了二维波浪数值模型。模型计算采用了有限差分法，时间格式上采用混合四阶Adams—Bashforth—Mouhon，空间格式上采用了Wei等（1995）给出的格式。数值计算中。采用了内部造渡技术。数值模拟针对3纽经典浅滩地形上波浪传播变形的实验进行，数值计算结果与实验结果吻合较好。验证了数值模型，该模型可期望用于实际港口渡浪预报。

2-D Numerical Model Based on the Extended Boussinesq Equations

Based on the extended Boussiensq equation,2-D numerical model is established in non-staggered grids.The finite difference method is applied to the present model: a composite 4th order of Adams-Bashforth Moulton scheme is used for time marching and the scheme used by Wei,et al.(1995) are applied to the present space differentials.Numerical simulation is done upon three typical wave propagation experiments,and the numerical results are in better agreement with the experimental data,which validates the model presented.The model is expected to compute the waves in ports.