DEM Analysis of Ball Motion in a Tumbling Ball Mill. Comparison with 2-Dimensional and 3-Dimensional Calculations.

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  • 離散要素法による転動ボールミル内の媒体運動の解析　２次元と３次元の比較
  • リサン ヨウソホウ ニヨル テンドウ ボール ミルナイ ノ バイタイ ウンドウ

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Abstract

The motion of balls in a tumbling ball mill was simulated numerically using the discrete element method (DEM). Simulations are performed for the two-dimensional and three-dimensional cases. To study the difference between two-dimensional and three-dimensional powder milling analyses, the ball motion was analyzed. It was found that there is no significant difference between the flow patterns for the two-dimensional and three-dimensional cases, but some properties such as the trajectory of the center of the gravity of the balls, the profile of the average velocity vector, the average ball velocity and the fluctuation velocities of the balls show significant differences.

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