Numerical Investigation of Sloshing in Rectangular Tank with Permeable Baffle

Violent sloshing induced by excitation with large amplitudes or resonant frequencies may result in structural damage of the liquid-tank or even the overturning of the liquid cargo transport system. Therefore, impermeable and permeable vertical baffles were investigated numerically to suppress sloshi...

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Main Authors: Liting Yu, Mi-An Xue, Aimeng Zhu
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Journal of Marine Science and Engineering
Subjects:
Online Access:https://www.mdpi.com/2077-1312/8/9/671
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author Liting Yu
Mi-An Xue
Aimeng Zhu
author_facet Liting Yu
Mi-An Xue
Aimeng Zhu
author_sort Liting Yu
collection DOAJ
description Violent sloshing induced by excitation with large amplitudes or resonant frequencies may result in structural damage of the liquid-tank or even the overturning of the liquid cargo transport system. Therefore, impermeable and permeable vertical baffles were investigated numerically to suppress sloshing. The numerical simulations were based on the finite element method and arbitrary Lagrangian–Eulerian (ALE) method. The numerical model was verified by the available experimental data, numerical results and linear theoretical results. Based on the study of the effects of impermeable baffle height, amplitude and frequency of excitation on sloshing, the effects of baffle permeability on sloshing were investigated. Importantly, a critical permeability coefficient that was most effective to suppress sloshing was found. In addition, the maximum flow velocities in the tank with a baffle of small permeability coefficient were smaller than those in the tank with an impermeable baffle. While, the maximum flow velocities under a baffle of large permeability coefficient were larger than those in the tank with an impermeable baffle. Vortices were observed in the whole region of the baffle, tank bottom, tank walls and the free surface in the tank with a permeable baffle.
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spelling doaj.art-fbd6a2888d6c489993cfe44ead9fd5352023-11-20T12:09:30ZengMDPI AGJournal of Marine Science and Engineering2077-13122020-09-018967110.3390/jmse8090671Numerical Investigation of Sloshing in Rectangular Tank with Permeable BaffleLiting Yu0Mi-An Xue1Aimeng Zhu2Key Laboratory of Ministry of Education for Coastal Disaster and Protection, Hohai University, Nanjing 210024, ChinaKey Laboratory of Ministry of Education for Coastal Disaster and Protection, Hohai University, Nanjing 210024, ChinaKey Laboratory of Ministry of Education for Coastal Disaster and Protection, Hohai University, Nanjing 210024, ChinaViolent sloshing induced by excitation with large amplitudes or resonant frequencies may result in structural damage of the liquid-tank or even the overturning of the liquid cargo transport system. Therefore, impermeable and permeable vertical baffles were investigated numerically to suppress sloshing. The numerical simulations were based on the finite element method and arbitrary Lagrangian–Eulerian (ALE) method. The numerical model was verified by the available experimental data, numerical results and linear theoretical results. Based on the study of the effects of impermeable baffle height, amplitude and frequency of excitation on sloshing, the effects of baffle permeability on sloshing were investigated. Importantly, a critical permeability coefficient that was most effective to suppress sloshing was found. In addition, the maximum flow velocities in the tank with a baffle of small permeability coefficient were smaller than those in the tank with an impermeable baffle. While, the maximum flow velocities under a baffle of large permeability coefficient were larger than those in the tank with an impermeable baffle. Vortices were observed in the whole region of the baffle, tank bottom, tank walls and the free surface in the tank with a permeable baffle.https://www.mdpi.com/2077-1312/8/9/671sloshingvertical bafflepermeable bafflepermeability coefficient
spellingShingle Liting Yu
Mi-An Xue
Aimeng Zhu
Numerical Investigation of Sloshing in Rectangular Tank with Permeable Baffle
Journal of Marine Science and Engineering
sloshing
vertical baffle
permeable baffle
permeability coefficient
title Numerical Investigation of Sloshing in Rectangular Tank with Permeable Baffle
title_full Numerical Investigation of Sloshing in Rectangular Tank with Permeable Baffle
title_fullStr Numerical Investigation of Sloshing in Rectangular Tank with Permeable Baffle
title_full_unstemmed Numerical Investigation of Sloshing in Rectangular Tank with Permeable Baffle
title_short Numerical Investigation of Sloshing in Rectangular Tank with Permeable Baffle
title_sort numerical investigation of sloshing in rectangular tank with permeable baffle
topic sloshing
vertical baffle
permeable baffle
permeability coefficient
url https://www.mdpi.com/2077-1312/8/9/671
work_keys_str_mv AT litingyu numericalinvestigationofsloshinginrectangulartankwithpermeablebaffle
AT mianxue numericalinvestigationofsloshinginrectangulartankwithpermeablebaffle
AT aimengzhu numericalinvestigationofsloshinginrectangulartankwithpermeablebaffle