IMECH-IR  > 流固耦合系统力学重点实验室
Numeriacal simulation of soil-water jet interaction with smoothed particle hydrodynamics
Guo ZM1,2; Shao JR3; Shen YX1; Liu MB(刘谋斌)3
2013
会议名称3rd International Conference on Particle-Based Methods Fundamentals and Applications, Particles 2013
会议日期September 18, 2013 - September 20, 2013
会议地点Stuttgart, Germany
会议录名称Particle-Based Methods III: Fundamentals and Applications - Proceedings of the 3rd International Conference on Particle-based MethodsFundamentals and Applications, Particles 2013
页码418-427
摘要Smoothed particle hydrodynamics (SPH) is a meshfree, Lagrangian particle method, which has been applied to different areas in sciences and industrial applications. In this work, SPH is used to simulate the soil-water jet interaction and erosion. In the simulation, water is modelled as a viscous fluid with weak compressibility and the soil is assumed to be an elastic-perfectly plastic material. The stress states of soil in the plastic flow regime follow the Drucker-Prager failure criterion. Both the shear and tensile criterions are used for the yield of soil particles if the yield point is reached and the total stress of the particle is scaled. Instead of computing particle pressure from an equation of state, the spherical stress is computed by dividing total stress into spherical stress and deviatoric stress. The interaction of coupling interfaces is strengthened by a penalty function to avoid unphysical penetration between particles from different materials. The obtained numerical results have shown that SPH could be a valuable method for the simulation of complex soil water interaction.
关键词Equations of state Interfaces (materials) Jets Numerical methods Plastic flow Soil moisture Elastic perfectly plastic Mesh free method Smoothed particle hydrodynamics Soil water interactions Water jets
ISBN号9788494153181
收录类别EI
语种英语
文献类型会议论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77989
专题流固耦合系统力学重点实验室
作者单位1.Laboratori de Càlcul Numèric (LaCàN), Universitat Politècnica de Catalunya (UPC), C. Jordi Girona 1-3, 08034 Barcelona, Spain;
2.North University of China, Xueyuan Road 3, 030051 Taiyuan, Shanxi, China;
3.Chinese Academy of Sciences, Institute of Mechanics, #15 Bei Si Huan Xi Lu, Haidian District, Beijing, China
推荐引用方式
GB/T 7714
Guo ZM,Shao JR,Shen YX,et al. Numeriacal simulation of soil-water jet interaction with smoothed particle hydrodynamics[C],2013:418-427.
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