IMPROVED SMOOTHED PARTICLE HYDRODYNAMICS WITH RANS FOR FREE-SURFACE FLOW PROBLEMS | |
Shao JR(邵家儒)1; Liu MB(刘谋斌)1; Yang XF(杨秀峰)1; Cheng L2; Liu, MB | |
发表期刊 | INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS |
2012-03-01 | |
卷号 | 9期号:1页码:1240001 |
ISSN | 0219-8762 |
摘要 | This paper presents an implementation of an improved smoothed particle hydrodynamics (SPH) method for numerical simulation of free-surface flow problems. The presented SPH method involves two major modifications on the traditional SPH method: (1) kernel gradient correction (KGC) and density correction to improve the computational accuracy in particle approximation and (2) RANS turbulence model to capture the inherent physics of flow turbulence. In the simulation, artificial compressibility for modeling incompressible fluid and ghost particles for treating solid boundaries are both applied. The presented SPH has been applied to two dam-breaking problems. We demonstrated that the presented SPH method has very good performance with more accurate flow patterns and pressure field distribution.;This paper presents an implementation of an improved smoothed particle hydrodynamics (SPH) method for numerical simulation of free-surface flow problems. The presented SPH method involves two major modifications on the traditional SPH method: (1) kernel gradient correction (KGC) and density correction to improve the computational accuracy in particle approximation and (2) RANS turbulence model to capture the inherent physics of flow turbulence. In the simulation, artificial compressibility for modeling incompressible fluid and ghost particles for treating solid boundaries are both applied. The presented SPH has been applied to two dam-breaking problems. We demonstrated that the presented SPH method has very good performance with more accurate flow patterns and pressure field distribution. |
关键词 | Sph Kernel Gradient Correction Rans Artificial Compressibility |
学科领域 | 水动力学 |
DOI | 10.1142/S0219876212400014 |
URL | 查看原文 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000302997100001 |
关键词[WOS] | DIRECT NUMERICAL-SIMULATION ; DYNAMICS ; SPH |
WOS研究方向 | Engineering ; Mathematics |
WOS类目 | Engineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications |
课题组名称 | LMFS冲击与耦合效应(LHO) |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/46631 |
专题 | 流固耦合系统力学重点实验室 |
通讯作者 | Liu, MB |
作者单位 | 1.Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China 2.Sichuan Univ, Chengdu 610064, Peoples R China |
推荐引用方式 GB/T 7714 | Shao JR,Liu MB,Yang XF,et al. IMPROVED SMOOTHED PARTICLE HYDRODYNAMICS WITH RANS FOR FREE-SURFACE FLOW PROBLEMS[J]. INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS,2012,9,1,:1240001. |
APA | Shao JR,Liu MB,Yang XF,Cheng L,&Liu, MB.(2012).IMPROVED SMOOTHED PARTICLE HYDRODYNAMICS WITH RANS FOR FREE-SURFACE FLOW PROBLEMS.INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS,9(1),1240001. |
MLA | Shao JR,et al."IMPROVED SMOOTHED PARTICLE HYDRODYNAMICS WITH RANS FOR FREE-SURFACE FLOW PROBLEMS".INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS 9.1(2012):1240001. |
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