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Finite element method for analyzing effects of porous baffle on liquid sloshing in the two-dimensional tanks

Hangduo Gao (Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, China)
Zhao Yin (Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, China)
Jun Liu (Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, China)
Quansheng Zang (Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, China)
Gao Lin (Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, China)

Engineering Computations

ISSN: 0264-4401

Article publication date: 15 October 2020

Issue publication date: 30 June 2021

275

Abstract

Purpose

The purpose of this paper is to analyze the liquid sloshing behaviors in two-dimensional tanks with various porous baffles under the external excitation.

Design/methodology/approach

Adopting the finite element method (FEM) and control variable method to study the impacts of the height, length, number, location, shape, porous-effect parameter of the porous baffle, the external load frequency and the shape of the tank on the liquid sloshing response.

Findings

The amplitude of the free surface can be reduced effectively when the baffle opening is appropriate. The anti-sway ability of the system increases in pace with the baffle’s height growing. Under the same conditions, the shapes of the baffles have an important effect on improving the anti-sway ability of the system.

Originality/value

As there exist the differences of the velocity potential between each side of the porous baffle, which means that there are two different velocity potentials at a point on the porous baffle, the conventional finite element modeling technologies are not suitable to be applied here. To deal with this problem, the points on the porous baffle are regarded as two nodes with the same coordinate to model and calculate.

Keywords

Acknowledgements

This research was supported by Grant 51779033 from the National Natural Science Foundation of China and Grant DUT20TD209 from the Fundamental Research Funds for the Central Universities for which the authors are grateful.

Citation

Gao, H., Yin, Z., Liu, J., Zang, Q. and Lin, G. (2021), "Finite element method for analyzing effects of porous baffle on liquid sloshing in the two-dimensional tanks", Engineering Computations, Vol. 38 No. 5, pp. 2105-2136. https://doi.org/10.1108/EC-12-2019-0567

Publisher

:

Emerald Publishing Limited

Copyright © 2020, Emerald Publishing Limited

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