IMHE OpenIR  > 山地灾害与地表过程重点实验室
Alternative TitleApplication of two-phase smoothed particle hydrodynamics method to dam break over movable bed
乔成1,2,3; 潘华利1; 欧国强1
Corresponding Author欧国强
Source Publication中国科学院大学学报


Other Abstract

Smoothed particle hydrodynamics( SPH) method adopts discrete particles for discretion
of computational domain,and field variables and their spatial derivatives are evaluated by summation interpolation based on particle and kernel functions,which makes this method more suitable for processing the large displacement,movable boundary,and free surface problems. In order to analyze the dam break problem over movable bed,an erosion condition based on Drunker-Prager is used. The particles satisfying this condition will move with the non-Newtonian characteristic,i. e. ,Herschel-Bulkley-Papanastasiou rheology,while the particles which do not satisfy the condition will
remain still. In order to improve the results of numerical modelling further,a two-phase SPH method which is based on the ratio of volume is applied when modelling the dynamics of mixture,and the calculation of viscosity of mixture is improved based on the dynamic characters of solid-fluid mixture. A dam-break problem over movable bed is analyzed based on the model mentioned above. Numerical results are compared with the experimental data,and the comparison verifies that the proposed formula improves the results of numerical modelling.


Keyword光滑粒子流体动力学 动床 溃坝 两相 非牛顿流体
Subject AreaO35
Indexed ByCSCD ; 北大中文核心
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Document Type期刊论文
Affiliation1.中国科学院水利部成都山地灾害与环境研究所 中国科学院山地灾害与地表过程重点实验室
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
乔成,潘华利,欧国强. 两相光滑粒子流体动力学方法在动床溃坝问题中的应用[J]. 中国科学院大学学报,2017,34(5):625-632.
APA 乔成,潘华利,&欧国强.(2017).两相光滑粒子流体动力学方法在动床溃坝问题中的应用.中国科学院大学学报,34(5),625-632.
MLA 乔成,et al."两相光滑粒子流体动力学方法在动床溃坝问题中的应用".中国科学院大学学报 34.5(2017):625-632.
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