DEM simulation of particle attrition in dilute-phase pneumatic conveying

Tamir Brosh, Haim Kalman, Avi Levy

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

Three dimensional numerical simulations of particles motion in a given geometry pneumatic conveying system are conducted in order to obtain a better understanding of the attrition process. A new and innovative procedure of implementing empirical comminution functions (Kalman et al. in Gran Mat 11:253-266, 2009) into DEM-CFD simulations was used and modified. The comminution functions include: initial strength distribution, selection function, breakage function, equivalence function and fatigue function. The implementation involves converting the probability comminution functions into individual particle properties by a random method and then converting the velocity dependent comminution functions into strength-dependent ones. The predictions of the numerical simulations are used to analyze the flow field characteristics and the size reduction process.

Original languageEnglish
Pages (from-to)175-181
Number of pages7
JournalGranular Matter
Volume13
Issue number2
DOIs
StatePublished - 1 Apr 2011

Keywords

  • Breakage function
  • DEM
  • Fatigue function
  • Particle breakage
  • Pneumatic conveying
  • Selection function

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