Numerical Studies on Violent Sloshing and Resonance Frequencies in a Three-Dimensional Prismatic Tank

To predict the resonance frequency of the real liquefied natural gas (LNG) tank, a Cartesian grid based three-dimensional (3D) multiphase flow model is used to simulate violent sloshing in a prismatic tank at different filling levels and excitation frequencies. In this model, a semi-implicit finite...

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Autores principales:	XIN Jianjian, FANG Tian, SHI Fulong
Formato:	article
Lenguaje:	ZH
Publicado:	Editorial Office of Journal of Shanghai Jiao Tong University 2021
Materias:	cartesian grid level set method sloshing prismatic tank resonance frequency Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Naval architecture. Shipbuilding. Marine engineering VM1-989
Acceso en línea:	https://doaj.org/article/333d0cb977b14a3eb09976967f97fc8a
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id	oai:doaj.org-article:333d0cb977b14a3eb09976967f97fc8a
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spelling	oai:doaj.org-article:333d0cb977b14a3eb09976967f97fc8a2021-11-04T09:34:25ZNumerical Studies on Violent Sloshing and Resonance Frequencies in a Three-Dimensional Prismatic Tank1006-246710.16183/j.cnki.jsjtu.2020.066https://doaj.org/article/333d0cb977b14a3eb09976967f97fc8a2021-02-01T00:00:00Zhttp://xuebao.sjtu.edu.cn/CN/10.16183/j.cnki.jsjtu.2020.066https://doaj.org/toc/1006-2467To predict the resonance frequency of the real liquefied natural gas (LNG) tank, a Cartesian grid based three-dimensional (3D) multiphase flow model is used to simulate violent sloshing in a prismatic tank at different filling levels and excitation frequencies. In this model, a semi-implicit finite difference method is adopted to solve the incompressible two-phase flow Navier-Stokes (N-S) equations on a staggered Cartesian grid. Besides, a radial basis function ghost cell method (RBFGCM) is used to treat the irregular tank walls and a 3D gradient-augmented level set (GALS) method is used to capture highly nonlinear free surfaces. Based on the present model, the violent sloshing induced by rolling excitations in the 3D prismatic tank is simulated. Satisfactory convergences of grid sizes and time steps demonstrate the high accuracy and reliability of the present method. Moreover, the present results of the impulsive pressure and wave elevation agree well with the experimental data for different filling water depths. In addition, violent sloshing phenomena are captured such as wave rolling. Furthermore, the relationship between the pressure amplitude on the tank wall and the excitation frequency at four filling levels are investigated to identify the resonance frequency of the prismatic tank, to provide theorical guides for structrual design of the tanks.XIN JianjianFANG TianSHI FulongEditorial Office of Journal of Shanghai Jiao Tong Universityarticlecartesian gridlevel set methodsloshingprismatic tankresonance frequencyEngineering (General). Civil engineering (General)TA1-2040Chemical engineeringTP155-156Naval architecture. Shipbuilding. Marine engineeringVM1-989ZHShanghai Jiaotong Daxue xuebao, Vol 55, Iss 02, Pp 161-169 (2021)
institution	DOAJ
collection	DOAJ
language	ZH
topic	cartesian grid level set method sloshing prismatic tank resonance frequency Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Naval architecture. Shipbuilding. Marine engineering VM1-989
spellingShingle	cartesian grid level set method sloshing prismatic tank resonance frequency Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Naval architecture. Shipbuilding. Marine engineering VM1-989 XIN Jianjian FANG Tian SHI Fulong Numerical Studies on Violent Sloshing and Resonance Frequencies in a Three-Dimensional Prismatic Tank
description	To predict the resonance frequency of the real liquefied natural gas (LNG) tank, a Cartesian grid based three-dimensional (3D) multiphase flow model is used to simulate violent sloshing in a prismatic tank at different filling levels and excitation frequencies. In this model, a semi-implicit finite difference method is adopted to solve the incompressible two-phase flow Navier-Stokes (N-S) equations on a staggered Cartesian grid. Besides, a radial basis function ghost cell method (RBFGCM) is used to treat the irregular tank walls and a 3D gradient-augmented level set (GALS) method is used to capture highly nonlinear free surfaces. Based on the present model, the violent sloshing induced by rolling excitations in the 3D prismatic tank is simulated. Satisfactory convergences of grid sizes and time steps demonstrate the high accuracy and reliability of the present method. Moreover, the present results of the impulsive pressure and wave elevation agree well with the experimental data for different filling water depths. In addition, violent sloshing phenomena are captured such as wave rolling. Furthermore, the relationship between the pressure amplitude on the tank wall and the excitation frequency at four filling levels are investigated to identify the resonance frequency of the prismatic tank, to provide theorical guides for structrual design of the tanks.
format	article
author	XIN Jianjian FANG Tian SHI Fulong
author_facet	XIN Jianjian FANG Tian SHI Fulong
author_sort	XIN Jianjian
title	Numerical Studies on Violent Sloshing and Resonance Frequencies in a Three-Dimensional Prismatic Tank
title_short	Numerical Studies on Violent Sloshing and Resonance Frequencies in a Three-Dimensional Prismatic Tank
title_full	Numerical Studies on Violent Sloshing and Resonance Frequencies in a Three-Dimensional Prismatic Tank
title_fullStr	Numerical Studies on Violent Sloshing and Resonance Frequencies in a Three-Dimensional Prismatic Tank
title_full_unstemmed	Numerical Studies on Violent Sloshing and Resonance Frequencies in a Three-Dimensional Prismatic Tank
title_sort	numerical studies on violent sloshing and resonance frequencies in a three-dimensional prismatic tank
publisher	Editorial Office of Journal of Shanghai Jiao Tong University
publishDate	2021
url	https://doaj.org/article/333d0cb977b14a3eb09976967f97fc8a
work_keys_str_mv	AT xinjianjian numericalstudiesonviolentsloshingandresonancefrequenciesinathreedimensionalprismatictank AT fangtian numericalstudiesonviolentsloshingandresonancefrequenciesinathreedimensionalprismatictank AT shifulong numericalstudiesonviolentsloshingandresonancefrequenciesinathreedimensionalprismatictank
_version_	1718444951147118592

Numerical Studies on Violent Sloshing and Resonance Frequencies in a Three-Dimensional Prismatic Tank

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