Validation of a combined dynamic mesh strategy for the simulation of body's large amplitude motion in wave
Validation of a combined dynamic mesh strategy for the simulation of body's large amplitude motion in wave
复制标题
用于模拟波浪中物体大幅运动的组合动态网格策略的验证
DOI：
10.1016/j.oceaneng.2019.106169
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发表时间：
2019-09
影响因子：
5
通讯作者：
L. Chen
中科院分区：
文献类型：
--
作者：
Z.L. Gao;Y.L. Wang;Yan SU;L. Chen
采用基于求解雷诺平均Navier-Stokes方程的计算流体力学（CFD）方法对体波干扰流场进行数值模拟。采用滑动界面技术和动态分层技术相结合的动态网格策略，解决了仿真过程中由于人体运动引起的网格更新问题。这种网格策略能够处理物体的任意平移和旋转运动。为了验证其性能，网格策略是实现与CFD求解器ANSYS-Fluent，并应用于解决二维问题的自由浮动箱形结构受到聚焦波。本文的数值计算结果与已发表的实验数据和数值计算结果进行了比较。对于波浪生成的情况，目前的动态网格策略相比静态网格策略，精度损失4%，效率损失6%。对于体波相互作用的情况，本文的动网格策略和动态重叠网格技术的精度处于同一水平。最后，将该方法应用于规则横浪中破损船舶倾覆的三维数值模拟。
The computational fluid dynamics (CFD) method based on solving the Reynolds-averaged Navier-Stokes equations was used to simulate the flow field of the body-wave interaction. A dynamic mesh strategy, which combines the sliding interface technique and the dynamic layering technique, was adopted to handle the mesh update due to the body motion in the simulation. This mesh strategy was capable of treating the arbitrary translational and rotational motions of the body. To validate its performance, the mesh strategy was implemented with the CFD solver ANSYS-Fluent and was applied to solve the 2-D problem of a freely floating box-shaped structure subjected to the focused wave. The present numerical results were compared with the published experimental data and numerical results. For the case of wave generation, the present dynamic mesh strategy incurred 4% loss in accuracy and 6% loss in efficiency compared to the static mesh strategy. For the case of body-wave interaction, the accuracies of the present dynamic mesh strategy and the dynamic overset mesh technique were at the same level. In addition, an application of the present dynamic mesh strategy to the 3-D simulation of a damaged ship capsizing in regular beam wave was demonstrated.
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影响因子：
1.4
作者：
R. Zhu;G. Miao;Z. Lin
通讯作者：
R. Zhu;G. Miao;Z. Lin
DOI：
10.2112/jcoastres-d-13-00052.1
发表时间：
2015-07
期刊：
--
影响因子：
--
作者：
Yi Han;J. Zhan;W. Su;Y. Li;Quan Zhou
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影响因子：
2.8
作者：
Hamn-Ching Chen;Kai Yu
通讯作者：
Hamn-Ching Chen;Kai Yu
DOI：
10.1007/978-1-4020-8630-4_12
发表时间：
2008-12
期刊：
--
影响因子：
--
作者：
Changhong Hu;M. Kashiwagi
通讯作者：
Changhong Hu;M. Kashiwagi
影响因子：
3.6
作者：
B. Bouscasse;A. Colagrossi;S. Marrone;M. Antuono
通讯作者：
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