复杂水域波浪物理模型与数学模型对比研究

基于MIKE21-BW模块,采用多种概化处理模型,研究了烟台港某工程港内波高分布和波浪传播状况。通过与物理模型进行对比,分析了各概化模型的优缺点,选择较优方案。结果表明:对于整个港池波高分布情况,各方案数学模型模拟结果和物理模型试验结果基本吻合,均能较好反映波高分布趋势及一些较复杂波浪传播变形现象。但其中存在多种波浪组合,同时包括波浪折射、反射、绕射、破碎、爬坡且反射波占主导地位的局部水域,数学模型模拟的波高数值都与物理模型结果相去甚远,说明MIKE21-BW仍不能很好模拟此类复杂波况水域。

Comparison study between numerical model and experiment test on wave in complex wave situation waters

Based on MIKE21-BW mathematical simulation module,using a variety of generalized models,the wave height distribution and wave propagation conditions of the specific project of Yantai Harbor were studied. Compared with the physical model,the advantages and disadvantages of various generalized models were analyzed to choose the optimum model.The results show that the wave height distribution is basically consistent between the mathematical model and the physical model.The results can both reflect the wave height distribution trend and the complex phenomenon of wave propagation.However,when there is wave refraction,wave reflection, diffraction,wave breaking,wave climbing and the reflected wave is dominating,the mathematical model to simulate the wave heights is far apart from the physical model results.Thus,MIKE21-BW still cannot well simulate the complex wave situation.