| 采用耦合有限元、边界元方法的矩形储液舱中液体晃荡数值仿真(英文) |
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| 作者姓名： | Hassan Saghi Mohammad Javad Ketabdari |
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| 作者单位： | Department of Civil Engineering,Ferdowsi University;Faculty of Marine Technology,Amirkabir University of Technology |
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| 摘 要： | Sloshing of liquid can increase the dynamic pressure on the storage sidewalls and bottom in tanker ships and LNG careers. Different geometric shapes were suggested for storage tank to minimize the sloshing pressure on tank perimeter. In this research, a numerical code was developed to model liquid sloshing in a rectangular partially filled tank. Assuming the fluid to be inviscid, Laplace equation and nonlinear free surface boundary conditions are solved using coupled FEM-BEM. The code performance for sloshing modeling is validated against available data. To minimize the sloshing pressure on tank perimeter, rectangular tanks with specific volumes and different aspect ratios were investigated and the best aspect ratios were suggested. The results showed that the rectangular tank with suggested aspect ratios, not only has a maximum surrounded tank volume to the constant available volume, but also reduces the sloshing pressure efficiently.
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| 关 键 词： | rectangular storage tank sloshing phenomenon aspect ratio coupled FEM-BEM |
Numerical simulation of sloshing in rectangular storage tank using coupled FEM-BEM |
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| Hassan Saghi,Mohammad Javad Ketabdari.Numerical simulation of sloshing in rectangular storage tank using coupled FEM-BEM[J].Journal of Marine Science and Application,2012,11(4):417-426. |
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| Authors: | Hassan Saghi Mohammad Javad Ketabdari |
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| Institution: | 1. Department of Civil Engineering, Ferdowsi University, Mashhad, 91779-48974, Iran
2. Faculty of Marine Technology, Amirkabir University of Technology, Tehran, 15875-4413, Iran
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| Abstract: | Sloshing of liquid can increase the dynamic pressure on the storage sidewalls and bottom in tanker ships and LNG careers. Different geometric shapes were suggested for storage tank to minimize the sloshing pressure on tank perimeter. In this research, a numerical code was developed to model liquid sloshing in a rectangular partially filled tank. Assuming the fluid to be inviscid, Laplace equation and nonlinear free surface boundary conditions are solved using coupled FEM-BEM. The code performance for sloshing modeling is validated against available data. To minimize the sloshing pressure on tank perimeter, rectangular tanks with specific volumes and different aspect ratios were investigated and the best aspect ratios were suggested. The results showed that the rectangular tank with suggested aspect ratios, not only has a maximum surrounded tank volume to the constant available volume, but also reduces the sloshing pressure efficiently. |
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