| 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.
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| Source Publication | COMPUTERS & STRUCTURES
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| 2012-06-01 | |
| Volume | 100Pages:18-26 |
| ISSN | 0045-7949 |
| 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.; 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 |
| Subject Area | 水动力学 |
| DOI | 10.1016/j.compstruc.2012.02.005 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000303787700002 |
| WOS Keyword | SMOOTHED PARTICLE HYDRODYNAMICS ; FINITE-ELEMENT-METHOD ; NUMERICAL-SIMULATION ; RECTANGULAR TANK ; UNDERWATER EXPLOSION ; VISCOUS-FLUID ; FLOWS ; BREAKING ; IMPACT ; WAVES |
| WOS Research Area | Computer Science ; Engineering |
| WOS Subject | Computer Science, Interdisciplinary Applications ; Engineering, Civil |
| Funding Organization | 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) |
| Department | LMFS冲击与耦合效应(LHO) |
| Classification | 一类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/46638 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | Liu, MB; Chinese Acad Sci, Inst Mech, LHO, Beijing 100190, Peoples R China. |
| Affiliation | 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 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. |
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