Fluid dynamics analysis of sloshing pressure distribution in storage vessels of different shapes
Fluid dynamics analysis of sloshing pressure distribution in storage vessels of different shapes
复制标题
不同形状储罐晃动压力分布的流体动力学分析
DOI：
10.1016/j.oceaneng.2019.106582
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发表时间：
2019-11
影响因子：
5
通讯作者：
Yuan Xiaoli
中科院分区：
文献类型：
--
作者：
Xue Mi-An;Chen Yichao;Zheng Jinhai;Qian Ling;Yuan Xiaoli
利用开放源码OpenFOAM对水平激振下储罐形状对晃动动力学的影响进行了一系列的数值模拟，并通过晃动流动问题的实验数据进行了验证。结果表明，在相同液体体积和储罐总尺寸的情况下，膜式液化天然气(LNG)储罐受到的冲击压力低于圆柱形、矩形和球形储罐，因为储罐底部的坡度改变了液体的流动方向，从而减小了对垂直壁面的冲击。在圆柱形和球形液舱中，与激振方向正好相反的壁面上存在较高的冲击压力，随着波浪的剧烈破碎，最大冲击点将偏离外部激振方向，直至达到沿侧壁旋转的晃荡波的准稳态。与圆柱形储罐相比，球形储罐的曲面也有助于降低冲击压力。
A series of numerical simulations were performed to investigate the influences of storage vessels shapes on sloshing dynamics under horizontal excitation by employing the open source code OpenFOAM, which has been extensively validated by experimental data for the sloshing flow problem. The results show that the membrane liquefied natural gas (LNG) tanks are subject to lower impact pressure than the cylindrical, rectangular and spherical tanks with the same volume of liquid and the overall tank dimensions, as the slope at the storage vessels bottom changes the flow direction of the liquid and therefore reduces the impact on the vertical wall. In the cylindrical and spherical tanks, higher impact pressure was found on the wall directly opposite to the excitation direction and the maximum impact point will shift away from the external excitation direction as the wave breaks up violently until a quasi-steady state of the sloshing wave rotating along the side wall is reached. The curved surface of the spherical tank could also help reduce the impact pressure when compared with the cylindrical tank.
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影响因子：
5
作者：
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通讯作者：
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影响因子：
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作者：
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作者：
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影响因子：
3.4
作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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