IMECH-IR  > 流固耦合系统力学重点实验室
溃坝问题的粒子方法模拟
Alternative TitleDam break simulation employing particle methods
刘汉涛; 干湧; 常建忠; 邵家儒; 李海桥
Source Publication应用力学学报
2016
Volume33Issue:4Pages:547-552
ISSN1000-4939
Abstract溃坝问题包括水体自由表面变形、翻卷、破碎、复杂的紊流和漩涡,涉及非线性复杂水动力学问题,含有丰富而复杂的流动机理。本文改进了传统的物质点方法,将物质点法从模拟固体问题拓展到了流体问题。采用改进的光滑粒子流体动力学和物质点方法,对两种长宽比的水坝坍塌过程进行了数值模拟,得到了波浪前沿及自由表面顶面随时间的演化过程。计算结果表明,两种粒子方法模拟的水体发展过程与实验结果吻合较好,较VOF更接近实验值。对涌波与竖直壁面的作用进行了计算,结果表明,SPH方法与其它方法相比能更好地捕捉水腔形态。最后分析了两种粒子方法在处理流体大变形问题时的特点以及计算的准确性和精度。
Other AbstractThe dam break problem involves free surfaces deformation, rolling, break-up and complicate turbulence and vortices. There are many strong nonlinear hydrodynamics problems and fundmental mechanism. The improved smooth particle hydrodynamics (SPH) and material point method (MPM) are used to investigate the dam break problem, and their simulation results are compared. The evolution of the wave front and the top surface at the position where x equals 0 are simulated, which agree with the Volume-of-Fluid (VOF) simulation results and experiment results well. Finally, the impact of the wave to a vertical wall is computed, and also the morphology evolutions fit well with each other.
KeywordSmooth Particle Hydrodynamics(Sph) Material Point Method(Mpm) Dam Break Solid Boundary Treatment
Indexed ByCSCD
Language中文
WOS Keywordsmooth particle hydrodynamics(SPH) ; material point method(MPM) ; dam break ; solid boundary treatment
Funding Organization国家自然科学基金 ; 中国博士后科学基金 ; 山西省国际科技合作项目 ; 山西省高等学校科技创新项目
CSCD IDCSCD:5785693
DepartmentLMFS冲击与耦合效应(LHO)
RankingFalse
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59793
Collection流固耦合系统力学重点实验室
Recommended Citation
GB/T 7714
刘汉涛,干湧,常建忠,等. 溃坝问题的粒子方法模拟[J]. 应用力学学报,2016,33(4):547-552.
APA 刘汉涛,干湧,常建忠,邵家儒,&李海桥.(2016).溃坝问题的粒子方法模拟.应用力学学报,33(4),547-552.
MLA 刘汉涛,et al."溃坝问题的粒子方法模拟".应用力学学报 33.4(2016):547-552.
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