Investigation of dynamics simulation of granular particles using spherocylinder model

Tohru Kidokoro, Ryohei Arai, Masato Saeki

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A dynamics simulation method for granular materials composed of cylindrical particles is investigated both experimentally and theoretically. A cylindrical particle is modeled as a cylinder with two hemispherical ends of the same diameter; this shape is also known as a spherocylinder. The motion of individual spherocylinders coming into contact with each other is solved by the discrete element method. There are four and two patterns in the cases of interparticle contact and particle–plane contact, respectively. The contact force acting on the particle is decomposed into normal and tangential components. The normal force is given by the sum of the damping force and the elastic force. To examine the validity of the simulation method, we conducted experiments for a vibratory conveyance and for an inclined chute flow. The behavior of spherocylinders was revealed by image processing. Through a comparison of the experimental and calculated results, it was found that the flow patterns obtained by this method appear realistic.

Original languageEnglish
JournalGranular Matter
DOIs
Publication statusAccepted/In press - 2015 Sep 24

Fingerprint

Granular materials
Finite difference method
Flow patterns
Particles (particulate matter)
Image processing
Damping
Computer simulation
simulation
Experiments
granular materials
chutes
image processing
flow distribution
damping

Keywords

  • Discrete element method
  • Dynamic simulation
  • Granular materials
  • Hertz model
  • Inclined chute flow
  • Spherocylinders
  • Vibratory conveyance

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Physics and Astronomy(all)

Cite this

Investigation of dynamics simulation of granular particles using spherocylinder model. / Kidokoro, Tohru; Arai, Ryohei; Saeki, Masato.

In: Granular Matter, 24.09.2015.

Research output: Contribution to journalArticle

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