| NUCLEAR ENERGY AND NEW ENERGY |
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Numerical simulation study of the effects of horizontal porous baffles on liquid sloshing in a cylindrical tank |
| ZHANG Zhanbo, LI Shengqiang |
| Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China |
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Abstract Liquid sloshing is a common phenomenon that can cause instabilities in aircraft, can damage the tanks, and can complicate liquid level monitoring. Therefore, sloshing suppression has been extensively studied. The most common method is to arrange baffles in the tanks. The porous media model based on Darcy's law provides a simple method for simulating flows in tanks with porous baffles. In this study, experimental data was used to verify the reliability of numerical simulations used to investigate the influence of various immersion depths of horizontal porous baffles on liquid sloshing for low-frequency, large-amplitude sloshing conditions. The results show that the sloshing crests and troughs change more with higher sloshing crests because of the baffles in some cases. The baffles disturb the liquid surface which make the liquid surface oscillate more than without baffles. Thus, the baffles increasing the liquid sloshing in some cases.
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| Keywords
horizontal porous baffle
baffle submergence depth
low-frequency, large-amplitude sloshing
numerical simulation
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Issue Date: 17 October 2018
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2018,
Vol. 58
