Steady particulate flows in a horizontal rotating cylinder

K. Yamane, M. Nakagawa, S. A. Altobelli, T. Tanaka, Y. Tsuji

研究成果: ジャーナルへの寄稿学術誌査読

146 被引用数 (Scopus)

抄録

Results of discrete element method (DEM) simulation and magnetic resonance imaging (MRI) experiments are compared for monodisperse granular materials flowing in a half-filled horizontal rotating cylinder. Because opacity is not a problem for MRI, a long cylinder with an aspect ratio ∼7 was used and the flow in a thin transverse slice near the center was studied. The particles were mustard seeds and the ratio of cylinder diameter to particle diameter was approximately 50. The parameters compared were dynamic angle of repose, velocity field in a plane perpendicular to the cylinder axis, and velocity fluctuations at rotation rates up to 30 rpm. The agreement between DEM and MRI was good when the friction coefficient and nonsphericity were adjusted in the simulation for the best fit.

本文言語英語
ページ(範囲)1419-1427
ページ数9
ジャーナルPhysics of Fluids
10
6
DOI
出版ステータス出版済み - 6月 1998

!!!All Science Journal Classification (ASJC) codes

  • 計算力学
  • 凝縮系物理学
  • 材料力学
  • 機械工学
  • 流体および伝熱

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