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Science China Information Sciences

, Volume 55, Issue 5, pp 1062–1072 | Cite as

A particle-based method for granular flow simulation

  • YuanZhang Chang
  • Kai Bao
  • Jian Zhu
  • EnHua Wu
Research Paper Special Focus

Abstract

We present a new particle-based method for granular flow simulation. In the method, a new elastic stress term, which is derived from a modified form of the Hooke’s law, is included in the momentum governing equation to handle the friction of granular materials. Viscosity force is also added to simulate the dynamic friction for the purpose of smoothing the velocity field and further maintaining the simulation stability. Benefiting from the Lagrangian nature of the SPH method, large flow deformation can be well handled easily and naturally. In addition, a signed distance field is also employed to enforce the solid boundary condition. The experimental results show that the proposed method is effective and efficient for handling the flow of granular materials, and different kinds of granular behaviors can be well simulated by adjusting just one parameter.

Keywords

granular materials sand smoothed particle hydrodynamics SPH Hooke’s law animation simulation 

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Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • YuanZhang Chang
    • 1
  • Kai Bao
    • 2
    • 3
  • Jian Zhu
    • 1
  • EnHua Wu
    • 1
    • 2
  1. 1.Department of Computer and Information ScienceUniversity of MacauMacaoChina
  2. 2.State Key Laboratory of Computer Science, Institute of SoftwareChinese Academy of SciencesBeijingChina
  3. 3.Division of Mathematical and Computer Sciences & EngineeringKAUSTThuwalSaudi Arabia

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