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IMECH-IR  > 流固耦合系统力学重点实验室(2012-)  > 期刊论文
Title:
An improved SPH method for modeling liquid sloshing dynamics
Author: Shao, J. R.1; Li, H. Q.2; Liu, G. R.3; Liu, M. B.1
Source: COMPUTERS & STRUCTURES
Issued Date: 2012-06-01
Volume: 100, Pages:18-26
Abstract: Smoothed particle hydrodynamics (SPH) is a popular meshfree, Lagrangian particle method with attractive features in modeling liquid sloshing dynamics, which is usually associated with changing and breakup of free surfaces, strong turbulence and vortex, and "violent" fluid-solid interaction. This paper presents an improved SPH method for modeling liquid sloshing dynamics. Firstly, modified schemes for approximating density (density correction) and kernel gradient (kernel gradient correction, or KGC) have been used to achieve better accuracy with smoother pressure field. Secondly, the Reynolds Averaged turbulence model is incorporated into the SPH method to describe the turbulence effects. Thirdly, a coupled dynamic solid boundary treatment (SBT) algorithm has been proposed to improve the accuracy near the solid boundary areas. The new SBT algorithm consists of a kernel-like, soft repulsive force between approaching fluid and solid particles, and a reliable numerical approximation scheme for estimating field functions of virtual solid particles. Three numerical examples are modeled using this improved SPH method, and the obtained numerical results agree well with experimental observations and results from other sources.
English Abstract: Smoothed particle hydrodynamics (SPH) is a popular meshfree, Lagrangian particle method with attractive features in modeling liquid sloshing dynamics, which is usually associated with changing and breakup of free surfaces, strong turbulence and vortex, and "violent" fluid-solid interaction. This paper presents an improved SPH method for modeling liquid sloshing dynamics. Firstly, modified schemes for approximating density (density correction) and kernel gradient (kernel gradient correction, or KGC) have been used to achieve better accuracy with smoother pressure field. Secondly, the Reynolds Averaged turbulence model is incorporated into the SPH method to describe the turbulence effects. Thirdly, a coupled dynamic solid boundary treatment (SBT) algorithm has been proposed to improve the accuracy near the solid boundary areas. The new SBT algorithm consists of a kernel-like, soft repulsive force between approaching fluid and solid particles, and a reliable numerical approximation scheme for estimating field functions of virtual solid particles. Three numerical examples are modeled using this improved SPH method, and the obtained numerical results agree well with experimental observations and results from other sources. (C) 2012 Elsevier Ltd. All rights reserved.
Keyword: Smoothed particle hydrodynamics (SPH) ; Liquid sloshing ; Numerical accuracy ; Turbulence model ; Solid boundary treatment
Language: 英语
Indexed Type: SCI
Corresponding Author: Liu, MB ; Chinese Acad Sci, Inst Mech, LHO, Beijing 100190, Peoples R China.
Correspondent Email: shaojiaru@imech.ac.cn;huiqili@bit.edu.cn; liugr@ucmail.uc.edu; liumoubin@imech.ac.cn
DOI: 10.1016/j.compstruc.2012.02.005
Related URLs: 查看原文
DOC Type: Article
WOS Subject: Computer Science, Interdisciplinary Applications ; Engineering, Civil
WOS Subject Extended: Computer Science ; Engineering
WOS Keyword Plus: SMOOTHED PARTICLE HYDRODYNAMICS ; FINITE-ELEMENT-METHOD ; NUMERICAL-SIMULATION ; RECTANGULAR TANK ; UNDERWATER EXPLOSION ; VISCOUS-FLUID ; FLOWS ; BREAKING ; IMPACT ; WAVES
WOS ID: WOS:000303787700002
ISSN: 0045-7949
Funder: National Natural Science Foundation of China(11172306) ; Chinese Academy of Sciences(Y175031XML)
Rank: [Shao, J. R.;Liu, M. B.] Chinese Acad Sci, Inst Mech, LHO, Beijing 100190, Peoples R China; [Li, H. Q.] Beijing Inst Technol, Sch Informat & Elect, Beijing 100081, Peoples R China; [Liu, G. R.] Univ Cincinnati, Cincinnati, OH 45221 USA
Subject: 流体力学::水动力学
Department: LMFS冲击与耦合效应(LHO)
Classification: 一类
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/46638
Appears in Collections:流固耦合系统力学重点实验室(2012-)_期刊论文

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description.institution: 1.Chinese Acad Sci, Inst Mech, LHO, Beijing 100190, Peoples R China
2.Beijing Inst Technol, Sch Informat & Elect, Beijing 100081, Peoples R China
3.Univ Cincinnati, Cincinnati, OH 45221 USA

Recommended Citation:
Shao, J. R.,Li, H. Q.,Liu, G. R.,et al. An improved SPH method for modeling liquid sloshing dynamics[J]. COMPUTERS & STRUCTURES,2012-06-01,100:18-26.
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