For violent sloshing, the flow field becomes complicated and 3-D effect is non-negligible. In addition to the excitation direction, the wave can also propagate perpendicular to the excitation direction. Due to the superposition of waves from different directions, the impact pressure imposed on the wall of the tank may increase. In this paper, our in-house solver MPSGPU-SJTU based on moving particle semi-implicit (MPS) method coupled with GPU techniques is employed for the liquid sloshing simulation, to study the factors leading to the 3-D effect. Firstly, a series of sloshing simulations are carried out to validate the reliability of present solver. Then, the sensitivity of 3-D effect against some parameters, such as excitation frequency, dimensions of the tank and filling ratio, is checked through numerical simulations. Time histories of pressure obtained by 2-D and 3-D simulations are compared to judge the occurrence of 3-D effect. It concludes that effects of those parameters are all significant.

中文翻译：

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基于MPS和GPU的油箱三维剧烈晃荡流的CFD模拟

对于剧烈晃动，流场变得复杂，并且3D效果不可忽略。除激发方向外，波还可以垂直于激发方向传播。由于来自不同方向的波浪的叠加，施加在罐壁上的冲击压力可能会增加。在本文中，我们将基于移动粒子半隐式（MPS）方法和GPU技术的内部求解器MPSGPU-SJTU用于液体晃荡模拟，以研究导致3-D效应的因素。首先，进行了一系列晃荡仿真以验证当前求解器的可靠性。然后，通过数值模拟检查了3-D效应对某些参数的敏感性，例如激励频率，储罐尺寸和填充比。比较通过2-D和3-D模拟获得的压力的时间历史，以判断3-D效应的发生。结论是这些参数的影响都是显着的。