Article(id=1323703515553608268, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1323703473736397109, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1101657600000, receivedDateStr=2004-11-29, revisedDate=1115568000000, revisedDateStr=2005-05-09, acceptedDate=null, acceptedDateStr=null, onlineDate=1793525111330, onlineDateStr=2026-11-01, pubDate=1141488000000, pubDateStr=2006-03-05, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793525111330, onlineIssueDateStr=2026-11-01, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793525111330, creator=13701087609, updateTime=1793525111330, updator=13701087609, issue=Issue{id=1323703473736397109, tenantId=1146029695717560320, journalId=1255847867265597444, year='2006', volume='20', issue='1', pageStart='1', pageEnd='112', issueExtLink='null', onlineDate='null', pubDate='1141488000000', pubDateStr='2006-03-05', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793525101360, creator='13701087609', updateTime=1793525101360, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=93, endPage=96, ext={EN=ArticleExt(id=1323703515771712077, articleId=1323703515553608268, tenantId=1146029695717560320, journalId=1255847867265597444, language=EN, title=Application of Interparticle Contact Algorithm Based on Riemann Solution in SPH, columnId=1322942130796245184, journalTitle=Chinese Journal of High Pressure Physics, columnName=Research Note, runingTitle=null, highlight=null, articleAbstract=

Smooth particle hydrodynamics (SPH) is a new effective numerical method for modeling problems involving large deformation. However when the SPH method is used to simulate shock waves come across contact interface, tensile instability occurs at the contact interface. In this paper we use contact algorithm which describes contact interaction between SPH particles by means of Riemann solution to simulate the propagation of wave in shock tube and projectile impact problems, and compare the numerical results with the analytical solutions. From the compared results, we can conclude that the modified SPH method do well in removing instabilities and improving accuracy of calculation. And due to the introduce of Riemann solution, there is no need to use artificial viscosity and heat flux, which simplifies the program code.

, authors=Zhi-Hong XU, Wen-Hui TANG, Ruo-Qi ZHANG, authorsList=Zhi-Hong XU, Wen-Hui TANG, Ruo-Qi ZHANG, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1323703516174365262, articleId=1323703515553608268, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=基于黎曼解的粒子间接触算法在SPH中的应用, columnId=1322942131614134466, journalTitle=高压物理学报, columnName=研究简报, runingTitle=null, highlight=null, articleAbstract=

采用光滑粒子流体动力学(SPH)方法模拟大变形问题具有明显的优点,但传统的SPH方法在模拟冲击波与接触界面的作用时,往往会出现压力的反常跳动。采用黎曼解描述粒子间相互作用的接触算法对传统SPH方法进行修正,计算了激波管和飞片碰撞(包含接触界面)问题中波的传播,并将计算结果与解析解作比较。结果表明,与传统的光滑粒子法相比,该改进的光滑粒子法无需引入人工粘性项和人工热流项,程序结构简洁,且能较好地处理接触界面问题,从而能有效提高计算精度。

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徐志宏(1977—),女,博士研究生,主要研究方向为冲击动力学的数值模拟. E-mail:

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徐志宏(1977—),女,博士研究生,主要研究方向为冲击动力学的数值模拟. E-mail:

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基于黎曼解的粒子间接触算法在SPH中的应用
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徐志宏 , 汤文辉 , 张若棋
高压物理学报 | 研究简报 2006,20(1): 93-96
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高压物理学报 |研究简报 2006 , 20 (1) : 93 -96
基于黎曼解的粒子间接触算法在SPH中的应用
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徐志宏 , 汤文辉, 张若棋
作者信息
  • 国防科学技术大学理学院技术物理研究所,湖南 长沙 410073
作者简介:

徐志宏(1977—),女,博士研究生,主要研究方向为冲击动力学的数值模拟. E-mail:

Application of Interparticle Contact Algorithm Based on Riemann Solution in SPH
Zhi-Hong XU , Wen-Hui TANG, Ruo-Qi ZHANG
Affiliations
  • Institute of Technical physics, College of Science, National University of Defense Technology, Changsha 410073, China
出版时间: 2006-03-05
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采用光滑粒子流体动力学(SPH)方法模拟大变形问题具有明显的优点,但传统的SPH方法在模拟冲击波与接触界面的作用时,往往会出现压力的反常跳动。采用黎曼解描述粒子间相互作用的接触算法对传统SPH方法进行修正,计算了激波管和飞片碰撞(包含接触界面)问题中波的传播,并将计算结果与解析解作比较。结果表明,与传统的光滑粒子法相比,该改进的光滑粒子法无需引入人工粘性项和人工热流项,程序结构简洁,且能较好地处理接触界面问题,从而能有效提高计算精度。

黎曼解  /  接触算法  /  可变光滑长度

Smooth particle hydrodynamics (SPH) is a new effective numerical method for modeling problems involving large deformation. However when the SPH method is used to simulate shock waves come across contact interface, tensile instability occurs at the contact interface. In this paper we use contact algorithm which describes contact interaction between SPH particles by means of Riemann solution to simulate the propagation of wave in shock tube and projectile impact problems, and compare the numerical results with the analytical solutions. From the compared results, we can conclude that the modified SPH method do well in removing instabilities and improving accuracy of calculation. And due to the introduce of Riemann solution, there is no need to use artificial viscosity and heat flux, which simplifies the program code.

Riemann solution  /  contact algorithm  /  variable smoothing distance
徐志宏, 汤文辉, 张若棋. 基于黎曼解的粒子间接触算法在SPH中的应用. 高压物理学报, 2006 , 20 (1) : 93 -96 .
Zhi-Hong XU, Wen-Hui TANG, Ruo-Qi ZHANG. Application of Interparticle Contact Algorithm Based on Riemann Solution in SPH[J]. Chinese Journal of High Pressure Physics, 2006 , 20 (1) : 93 -96 .

参考文献 引证文献
排序方式:
[1]
Libersky L D, Petschek A G. Smoothed Particle Hydrodynamics with Strength of Materials[A].//Trease H, Fritts J, Crowley W. Lecture Notes in Physics[C]. New York: Springer, 1991: 248-257.
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Monaghan J J. Shock Simulation by the Particle Method SPH[J]. J Comput Phys, 1983, 52: 374-389.
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Noh W F. Errors for Calculations of Strong Shocks Using an Artificial Viscosity and an Artificial Heat Flux[J]. J Comput Phys, 1987, 72: 78-120.
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Johnson G R, Petersen E H, Stryk R A. Incorportation of an SPH Option in the EPIC Code for a Wide Range of High Velocity Impact Computations[J]. Int J Impact Eng, 1993, 14: 385-394.
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Johnson G R, Beissel S R. Normalized Smoothed Functions for SPH Impact Computations[J]. Int J Numer Meth Eng, 1996, 39: 2725-2741.
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Campbell J, Vignjevic R, Libersky L D. A Contact Algorithm for Smoothed Particle Hydrodynamics[J]. Comput Meth Appl Mech Eng, 2000, 184: 49-65.
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Parshikov A N, Medin S A, Loukashenko I I, et al. Improvements in SPH Method by Means of Interparticle Contact Algorithm and Analysis of Perforation Tests at Moderate Projectile Velocities[J]. Int J Impact Eng, 2000, 24: 779-796.
2006年第20卷第1期
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  • 接收时间:2004-11-29
  • 首发时间:2026-11-01
  • 出版时间:2006-03-05
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  • 收稿日期:2004-11-29
  • 修回日期:2005-05-09
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    国防科学技术大学理学院技术物理研究所,湖南 长沙 410073
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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