In the DEM simulations, particle shapes play a crucial role in the accuracy of simulations, particularly in the context of mechanical and flow behaviors. While spherical particles are the simplest and most commonly used shape due to their ease of contact detection and computational efficiencyEfficiency, real particles in nature or engineering systems are often non-spherical. Below are several advanced methods to represent the shapes of non-spherical particles and contact detection algorithmsContact detection algorithm in DEM, with their respective advantages and limitations.

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Particle Shape Models and Contact Detection Algorithms

  • Ramesh K. Agarwal,
  • Yali Shao

摘要

In the DEM simulations, particle shapes play a crucial role in the accuracy of simulations, particularly in the context of mechanical and flow behaviors. While spherical particles are the simplest and most commonly used shape due to their ease of contact detection and computational efficiencyEfficiency, real particles in nature or engineering systems are often non-spherical. Below are several advanced methods to represent the shapes of non-spherical particles and contact detection algorithmsContact detection algorithm in DEM, with their respective advantages and limitations.