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Numeriacal simulation of soil-water jet interaction with smoothed particle hydrodynamics
Guo ZM1,2; Shao JR3; Shen YX1; Liu MB(刘谋斌)3
Source PublicationParticle-Based Methods III: Fundamentals and Applications - Proceedings of the 3rd International Conference on Particle-based MethodsFundamentals and Applications, Particles 2013
Conference Name3rd International Conference on Particle-Based Methods Fundamentals and Applications, Particles 2013
Conference DateSeptember 18, 2013 - September 20, 2013
Conference PlaceStuttgart, Germany
AbstractSmoothed 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.
KeywordEquations 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
Indexed ByEI
Document Type会议论文
Affiliation1.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
Recommended Citation
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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