Numerical simulations of multi-layer-liquid sloshing by multiphase MPS method
Numerical simulations of multi-layer-liquid sloshing by multiphase MPS method
复制标题
多相MPS法模拟多层液体晃动
DOI：
10.1007/s42241-021-0083-z
复制
发表时间：
2021-10
影响因子：
2.5
通讯作者：
Decheng Wan
中科院分区：
文献类型：
--
作者：
Xiao Wen;Weiwen Zhao;Decheng Wan
本文在原有的单相流运动粒子半隐式方法(MPS)中引入多种多相模型，发展了一种多相运动粒子半隐式(MPS)方法，并将其应用于二维矩形水池在不同外激励下的两层液体和三层液体晃动的数值模拟。为了验证多相MPS方法的准确性，将波形图、界面高度和冲击压力等定性和定量的结果与实验数据和其他数值结果进行了比较，结果表明吻合较好。特别是，比较了自由面和相界面的演化，发现两者有明显的差异，表明相界面可能经历复杂的变形，而自由面保持相对平静。此外，在不同的激励频率下，观察到了不同的相界面模式。然后模拟了三层液体体系的剧烈晃动，很好地捕捉到了内波破碎现象，这主要得益于MPS方法的拉格朗日基础及其在复杂界面多相流中的优势。最后，对带有垂直挡板的三层液体晃动进行了数值模拟，研究了挡板对多层液体晃动的抑制作用。
In this paper, a multiphase moving particle semi-implicit (MPS) method is developed by introduction of various multiphase models into the original MPS method for single-phase flows, and is then applied to the numerical simulations of two-layer-liquid and three-layer-liquid sloshing in a 2-D rectangular tank under different external excitations. To validate the accuracy of the present multiphase MPS method, the qualitative and quantitative results, including wave profiles, interface elevations and impact pressures, are compared with experimental data and other numerical results, which show a good agreement. In particular, the evolutions of free surface and phase interfaces are compared and an obvious discrepancy is found, indicating that the phase interfaces may suffer from complex deformations while the free surface keeps relatively quiet. Moreover, the different modes of phase interface are observed under different excitation frequencies. Then, the violent sloshing of a three-layer-liquid system is simulated and the phenomenon of internal wave breaking is well captured, which mainly benefitted from the Lagrangian basis of MPS method and its advantage in multiphase flows with complex interfaces. Finally, the three-layer-liquid sloshing with a vertical baffle are simulated to investigate the suppressing effect of baffle on multi-layer-liquid sloshing.
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影响因子：
2.8
作者：
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通讯作者：
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影响因子：
2.5
作者：
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影响因子：
2.5
作者：
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通讯作者：
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DOI：
--
发表时间：
2013-06
期刊：
--
影响因子：
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作者：
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通讯作者：
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影响因子：
2.5
作者：
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通讯作者：
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