Unstructured finite volume method for water impact on a rigid body

A new method is presented for the water impact simulation, in which the air-water two phase flow is solved using the pressure-based computational fluid dynamics method. Theoretically, the air effects can be taken into account in the water structure interaction. The key point of this method is the ai...

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Bibliographic Details
Published in:Journal of hydrodynamics. Series B 2014-08, Vol.26 (4), p.538-548
Main Author: 余艳 明平剑 段文洋
Format: Article
Language:English
Subjects:
air cushion
Engineering
Engineering Fluid Dynamics
Hydrology/Water Resources
Numerical and Computational Physics
numerical simulation
Simulation
unstructured grid
volume of fluid (VOF)
刚体
数值计算方法
有限体积法
水冲击
结构相互作用
自由表面流动
非结构化
非结构网格
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Summary:A new method is presented for the water impact simulation, in which the air-water two phase flow is solved using the pressure-based computational fluid dynamics method. Theoretically, the air effects can be taken into account in the water structure interaction. The key point of this method is the air-water interface capture, which is treated as a physical discontinuity and can be captured by a well-designed high order scheme. According to a normalized variable diagram, a high order discrete scheme on unstructured grids is realised, so a numerical method for the free surface flow on a fixed grid can be established. This method is implemented using an in-house code, the General Transport Equation Analyzer, which is an unstructured grid finite volume solver. The method is verified with the wedge water and structure interaction problem.
ISSN:1001-6058
1878-0342
DOI:10.1016/S1001-6058(14)60061-5