An improved SPH method for modeling liquid sloshing dynamics

doi:10.1016/j.compstruc.2012.02.005

IMECH-IR > 流固耦合系统力学重点实验室

	An improved SPH method for modeling liquid sloshing dynamics
	Shao, J. R.1; Li, H. Q.2; Liu, G. R.3; Liu, M. B.1; Liu, MB; Chinese Acad Sci, Inst Mech, LHO, Beijing 100190, Peoples R China.
发表期刊	COMPUTERS & STRUCTURES
	2012-06-01
卷号	100 页码:18-26
ISSN	0045-7949
摘要	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.; 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.
关键词	Smoothed Particle Hydrodynamics (Sph) Liquid Sloshing Numerical Accuracy Turbulence Model Solid Boundary Treatment
学科领域	水动力学
DOI	10.1016/j.compstruc.2012.02.005
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000303787700002
关键词[WOS]	SMOOTHED PARTICLE HYDRODYNAMICS ; FINITE-ELEMENT-METHOD ; NUMERICAL-SIMULATION ; RECTANGULAR TANK ; UNDERWATER EXPLOSION ; VISCOUS-FLUID ; FLOWS ; BREAKING ; IMPACT ; WAVES
WOS研究方向	Computer Science ; Engineering
WOS类目	Computer Science, Interdisciplinary Applications ; Engineering, Civil
项目资助者	National Natural Science Foundation of China(11172306) ; This work has been supported by the National Natural Science Foundation of China (11172306) and National Defense Innovation Funds of the Chinese Academy of Sciences (Y175031XML). ; Chinese Academy of Sciences(Y175031XML)
课题组名称	LMFS冲击与耦合效应(LHO)
论文分区	一类
引用统计	被引频次：203[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/46638
专题	流固耦合系统力学重点实验室
通讯作者	Liu, MB; Chinese Acad Sci, Inst Mech, LHO, Beijing 100190, Peoples R China.
作者单位	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
推荐引用方式 GB/T 7714	Shao, J. R.,Li, H. Q.,Liu, G. R.,et al. An improved SPH method for modeling liquid sloshing dynamics[J]. COMPUTERS & STRUCTURES,2012,100:18-26.
APA	Shao, J. R.,Li, H. Q.,Liu, G. R.,Liu, M. B.,Liu, MB,&Chinese Acad Sci, Inst Mech, LHO, Beijing 100190, Peoples R China..(2012).An improved SPH method for modeling liquid sloshing dynamics.COMPUTERS & STRUCTURES,100,18-26.
MLA	Shao, J. R.,et al."An improved SPH method for modeling liquid sloshing dynamics".COMPUTERS & STRUCTURES 100(2012):18-26.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
SCI-J2012-021.pdf（1519KB）			开放获取	--	浏览下载