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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-Moulton,空间格式上采用了Wei等(1995)给出的格式。数值计算中,采用了内部造波技术。数值模拟针对3组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波浪预报。
Based on the improved Boussinesq equation, a two-dimensional wave numerical model is established under non-staggered grid. The finite difference method is used for the model calculation, the mixed fourth-order Adams-Bashforth-Moulton method is adopted for the time format, and the format given by Wei et al. (1995) is used for the spatial format. In numerical calculation, using internal wave making technology. The numerical simulation is carried out for the experiment of wave propagation and deformation on the three sets of classic shoal topography. The numerical results are in good agreement with the experimental results, and the numerical model is validated. The model can be expected to be used in the actual wave forecast of the port.