A two-phase flow model for wave–structure interaction using a virtual boundary force method
A two-phase flow model for wave–structure interaction using a virtual boundary force method
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DOI：
10.1016/j.compfluid.2016.02.007
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发表时间：
2016-04
影响因子：
2.8
通讯作者：
P. Lin;Lin Cheng;Dongming Liu
中科院分区：
文献类型：
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作者：
P. Lin;Lin Cheng;Dongming Liu
使用虚拟边界力（VBF）方法开发了三维两相流模型来研究波与结构的相互作用。该模型求解两相流的纳维-斯托克斯方程。采用二阶精确流体体积（VOF）方法来跟踪自由表面。为了满足刚体表面无滑移条件，计算时沿刚体表面施加虚拟边界力。该模型首先针对波与曲面结构的相互作用进行了验证。然后，该模型用于模拟各种类型的二维和三维波浪-结构相互作用问题，即倾斜海滩上的孤立波上升和下降、水下防波堤上方的非线性波浪变换以及大型圆柱体周围的波浪衍射。计算结果与现有的解析解和实验数据相比较。最后，作为演示，对浮动截圆柱体上的三维波浪破碎进行了模拟和讨论。
A three-dimensional two-phase flow model is developed to study wave interaction with structures by using a virtual boundary force (VBF) method. This model solves the Navier–Stokes equations for two-phase flows. The second-order accurate volume-of-fluid (VOF) method is used to track the free surface. In order to satisfy the no-slip condition on the rigid body surface, the virtual boundary forces are applied along the surface of the body in the computation. The model is first validated for wave interaction with a structure with the curved surface. This model is then used to simulate various types of two-dimensional and three-dimensional wave–structure interaction problems, i.e., solitary wave runup and rundown on a sloping beach, nonlinear wave transformation above a submerged breakwater, and wave diffraction around a large circular cylinder. The computational results compare well with available analytical solutions and experimental data. Lastly, as a demonstration, the three-dimensional wave breaking on a floating truncated circular cylinder is simulated and discussed.