内孤立波数值模拟方法研究

发布时间：2018-01-04 23:34

本文关键词：内孤立波数值模拟方法研究　出处：《中国海洋大学学报(自然科学版)》2016年10期 　论文类型：期刊论文

【摘要】：本文选用RNGk-ε湍流模型封闭二维不可压缩N-S方程组,选用KdV、mKdV理论作为输入条件进行内孤立波造波模拟。运用流体模拟软件Fluent建立二维内波数值水槽,用动网格手段实现网格变形模拟物理边界造波法,用VOF方法进行密度分层流体的内界面追踪,对不同非线性强度的二相流内孤立波进行了数值模拟。并将数值模拟结果与KdV、mKdV理论波形以及内波试验水槽所造内孤立波进行对比,验证了此套造波方法在Fluent中进行内孤立波模拟的可行性。
[Abstract]:In this paper, the RNGk- 蔚 turbulence model is used to close the two-dimensional incompressible N-S equations, and KdV is used. The mKdV theory is used as the input condition to simulate the internal solitary wave, the two-dimensional internal wave numerical flume is established by using the fluid simulation software Fluent, and the grid deformation simulation physical boundary wave generation method is realized by moving grid method. The internal interface of density stratified fluid is tracked by VOF method, and the internal solitary waves of two phase flow with different nonlinear intensities are numerically simulated. The numerical simulation results are compared with that of KdV. The comparison of mKdV theoretical waveforms and internal solitary waves produced by the experimental flume verifies the feasibility of this method for simulating internal solitary waves in Fluent.
【作者单位】：中国海洋大学工程学院;青岛酒店管理职业技术学院;
【基金】：国家自然科学基金项目(51279187) 中央高校基本科研业务费项目(201262005)~~
【分类号】：P731.24
【正文快照】： 引用格式:苗得胜,郭海燕,赵婧,等.内孤立波数值模拟方法研究[J].中国海洋大学学报(自然科学版),2016,46(10):123-128.MIAO De-Sheng,GUO Hai-Yan,ZHAO Jing,et al.Study of numerical simulation method of internal solitary waves[J].Periodical of Ocean University of Chi

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