IMECH-IR  > 流固耦合系统力学重点实验室
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
Source PublicationINTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS
2012-03-01
Volume9Issue:1Pages:1240001
ISSN0219-8762
Abstract

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.

KeywordSph Kernel Gradient Correction Rans Artificial Compressibility
Subject Area水动力学
DOI10.1142/S0219876212400014
URL查看原文
Indexed BySCI
Language英语
WOS IDWOS:000302997100001
WOS KeywordDIRECT NUMERICAL-SIMULATION ; DYNAMICS ; SPH
WOS Research AreaEngineering ; Mathematics
WOS SubjectEngineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications
DepartmentLMFS冲击与耦合效应(LHO)
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Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46631
Collection流固耦合系统力学重点实验室
Corresponding AuthorLiu, MB
Affiliation1.Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China
2.Sichuan Univ, Chengdu 610064, Peoples R China
Recommended Citation
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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