基于FLUENT的内孤立波质量源造波方法

发布时间：2018-05-16 00:00

本文选题：质量源 + 内孤立波　；参考：《海洋与湖沼》2016年06期

【摘要】：为研究内孤立波质量源数值造波方法,本文采用两个点源形式的质量源,分别放置于两层流体的上下层中作为内孤立波激发源。推导源项表达式,从不可压缩流体的Navier-Stokes方程出发,结合内孤立波Kd V、e Kd V理论,基于商业软件FLUENT发展了一种内孤立波质量源数值造波方法。通过数值模拟,分析了质量源造波过程中内孤立波的生成过程,并将数值模拟结果同理论及实验作对比。结果表明:基于此方法生成的内孤立波波形、波高及波致水平速度与理论及实验吻合度较好,该方法是可行的,并且耗时短、效率高。
[Abstract]:In order to study the numerical wave generation method of internal solitary wave mass sources, two mass sources in the form of point sources are used as excitation sources of internal solitary waves in the upper and lower layers of two layers of fluid respectively. Based on the Navier-Stokes equation of incompressible fluid and the theory of internal solitary wave, a numerical method of internal solitary wave mass source is developed based on commercial software FLUENT. Through numerical simulation, the generation process of internal solitary waves in the process of mass source wave-making is analyzed, and the numerical simulation results are compared with the theoretical and experimental results. The results show that the wave height and wave induced horizontal velocity generated by this method are in good agreement with the theoretical and experimental results. The method is feasible, time-consuming and efficient.
【作者单位】：中国海洋大学工程学院;
【基金】：国家自然科学基金项目;51279187号山东省科技重大专项项目;2015ZDZX04003号
【分类号】：P731.24

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