Numerical investigation of unsteady state hopper flow

H. P. Zhu, A. B. Yu

Research output: Contribution to conferencePaperOther

Abstract

This paper presents a numerical study of the unsteady state granular flow in a cylindrical hopper with flat bottom by means of the discrete element method. The distributions of the physical properties including velocity, force and stress are investigated qualitatively or quantitatively. It is shown that this flow has four different flow zones, in which these distributions are different. At different discharging times, the trends of the characteristics are similar, but their magnitudes different. The results also show that the trends of the unsteady and steady state hopper flows in terms of velocity, force and stress are similar. But, quantitatively, there are differences in these physical properties for the two flows.

Original languageEnglish
Publication statusPublished - 1 Dec 2006
Externally publishedYes
Event2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology - Orlando, FL, United States of America
Duration: 23 Apr 200627 Apr 2006

Conference

Conference2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology
CountryUnited States of America
CityOrlando, FL
Period23/04/0627/04/06

Keywords

  • Discrete element method
  • Granular matter
  • Hopper flow

Cite this

Zhu, H. P., & Yu, A. B. (2006). Numerical investigation of unsteady state hopper flow. Paper presented at 2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology, Orlando, FL, United States of America.
Zhu, H. P. ; Yu, A. B. / Numerical investigation of unsteady state hopper flow. Paper presented at 2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology, Orlando, FL, United States of America.
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Zhu, HP & Yu, AB 2006, 'Numerical investigation of unsteady state hopper flow' Paper presented at 2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology, Orlando, FL, United States of America, 23/04/06 - 27/04/06, .

Numerical investigation of unsteady state hopper flow. / Zhu, H. P.; Yu, A. B.

2006. Paper presented at 2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology, Orlando, FL, United States of America.

Research output: Contribution to conferencePaperOther

TY - CONF

T1 - Numerical investigation of unsteady state hopper flow

AU - Zhu, H. P.

AU - Yu, A. B.

PY - 2006/12/1

Y1 - 2006/12/1

N2 - This paper presents a numerical study of the unsteady state granular flow in a cylindrical hopper with flat bottom by means of the discrete element method. The distributions of the physical properties including velocity, force and stress are investigated qualitatively or quantitatively. It is shown that this flow has four different flow zones, in which these distributions are different. At different discharging times, the trends of the characteristics are similar, but their magnitudes different. The results also show that the trends of the unsteady and steady state hopper flows in terms of velocity, force and stress are similar. But, quantitatively, there are differences in these physical properties for the two flows.

AB - This paper presents a numerical study of the unsteady state granular flow in a cylindrical hopper with flat bottom by means of the discrete element method. The distributions of the physical properties including velocity, force and stress are investigated qualitatively or quantitatively. It is shown that this flow has four different flow zones, in which these distributions are different. At different discharging times, the trends of the characteristics are similar, but their magnitudes different. The results also show that the trends of the unsteady and steady state hopper flows in terms of velocity, force and stress are similar. But, quantitatively, there are differences in these physical properties for the two flows.

KW - Discrete element method

KW - Granular matter

KW - Hopper flow

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M3 - Paper

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Zhu HP, Yu AB. Numerical investigation of unsteady state hopper flow. 2006. Paper presented at 2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology, Orlando, FL, United States of America.