Microdynamic analysis of particle flow in a horizontal rotating drum

R. Y. Yang, R. P. Zou, A. B. Yu

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The flow of particles in a horizontal rotating drum is studied based on the results generated by Distinct Element Method (DEM). The simulation conditions are comparable to those measured by means of Positron Emission Particle Tracking (PEPT), with a drum being 100 mm in diameter, 35% filled by spheres of 3 mm diameter, and rotating at a speed from 10 to 65 rpm. The simulation method is validated from its good agreement with the PEPT measurement in terms of the dynamic angle of repose and spatial velocity fields. The dependence of flow behaviour on rotation speed is then analysed based on the DEM results, aiming to establish the spatial and statistical distributions of microdynamic variables related to flow structure such as porosity and coordination number, and force structure such as particle interaction forces, relative collision velocity and collision frequency. An attempt has also been made to explain the effect of rotation speed on agglomeration based on the present findings.

Original languageEnglish
Pages (from-to)138-146
Number of pages9
JournalPowder Technology
Volume130
Issue number1-3
DOIs
Publication statusPublished - 19 Feb 2003
Externally publishedYes

Keywords

  • Agglomeration
  • Discrete particle simulation
  • Granular flow
  • Rotating drum

Cite this

@article{516585df228e498387bac61799fc0c61,
title = "Microdynamic analysis of particle flow in a horizontal rotating drum",
abstract = "The flow of particles in a horizontal rotating drum is studied based on the results generated by Distinct Element Method (DEM). The simulation conditions are comparable to those measured by means of Positron Emission Particle Tracking (PEPT), with a drum being 100 mm in diameter, 35{\%} filled by spheres of 3 mm diameter, and rotating at a speed from 10 to 65 rpm. The simulation method is validated from its good agreement with the PEPT measurement in terms of the dynamic angle of repose and spatial velocity fields. The dependence of flow behaviour on rotation speed is then analysed based on the DEM results, aiming to establish the spatial and statistical distributions of microdynamic variables related to flow structure such as porosity and coordination number, and force structure such as particle interaction forces, relative collision velocity and collision frequency. An attempt has also been made to explain the effect of rotation speed on agglomeration based on the present findings.",
keywords = "Agglomeration, Discrete particle simulation, Granular flow, Rotating drum",
author = "Yang, {R. Y.} and Zou, {R. P.} and Yu, {A. B.}",
year = "2003",
month = "2",
day = "19",
doi = "10.1016/S0032-5910(02)00257-7",
language = "English",
volume = "130",
pages = "138--146",
journal = "Powder Technology",
issn = "0032-5910",
publisher = "Elsevier",
number = "1-3",

}

Microdynamic analysis of particle flow in a horizontal rotating drum. / Yang, R. Y.; Zou, R. P.; Yu, A. B.

In: Powder Technology, Vol. 130, No. 1-3, 19.02.2003, p. 138-146.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Microdynamic analysis of particle flow in a horizontal rotating drum

AU - Yang, R. Y.

AU - Zou, R. P.

AU - Yu, A. B.

PY - 2003/2/19

Y1 - 2003/2/19

N2 - The flow of particles in a horizontal rotating drum is studied based on the results generated by Distinct Element Method (DEM). The simulation conditions are comparable to those measured by means of Positron Emission Particle Tracking (PEPT), with a drum being 100 mm in diameter, 35% filled by spheres of 3 mm diameter, and rotating at a speed from 10 to 65 rpm. The simulation method is validated from its good agreement with the PEPT measurement in terms of the dynamic angle of repose and spatial velocity fields. The dependence of flow behaviour on rotation speed is then analysed based on the DEM results, aiming to establish the spatial and statistical distributions of microdynamic variables related to flow structure such as porosity and coordination number, and force structure such as particle interaction forces, relative collision velocity and collision frequency. An attempt has also been made to explain the effect of rotation speed on agglomeration based on the present findings.

AB - The flow of particles in a horizontal rotating drum is studied based on the results generated by Distinct Element Method (DEM). The simulation conditions are comparable to those measured by means of Positron Emission Particle Tracking (PEPT), with a drum being 100 mm in diameter, 35% filled by spheres of 3 mm diameter, and rotating at a speed from 10 to 65 rpm. The simulation method is validated from its good agreement with the PEPT measurement in terms of the dynamic angle of repose and spatial velocity fields. The dependence of flow behaviour on rotation speed is then analysed based on the DEM results, aiming to establish the spatial and statistical distributions of microdynamic variables related to flow structure such as porosity and coordination number, and force structure such as particle interaction forces, relative collision velocity and collision frequency. An attempt has also been made to explain the effect of rotation speed on agglomeration based on the present findings.

KW - Agglomeration

KW - Discrete particle simulation

KW - Granular flow

KW - Rotating drum

UR - http://www.scopus.com/inward/record.url?scp=0037453879&partnerID=8YFLogxK

U2 - 10.1016/S0032-5910(02)00257-7

DO - 10.1016/S0032-5910(02)00257-7

M3 - Article

VL - 130

SP - 138

EP - 146

JO - Powder Technology

JF - Powder Technology

SN - 0032-5910

IS - 1-3

ER -