Studies on Packing of Powder. VII. The Use of Digital Computer for Simulation of Powder Compaction on Two-Dimensional Model.

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Other Title
  • 粉体の充填に関する研究(第7報)二次元モデルによる粉体充填のシミュレーション その2
  • 粉体の充填に関する研究-7-二次元モデルによる粉体充填のシミュレーションー2-
  • フンタイ ノ ジュウテン ニカンスルケンキュウ 7 2ジゲン モデル ニヨル

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Abstract

Following the previous work on a simulation of powder compaction on two-dimensional model, where 400 discs were used and the cohesion probability P' and insertion probability P" were introduced, 1600 discs (40×40) were used and it was assumed that discs did not shift to the hole present in the lower layer when the coordination number of a disc or the probability variable (R) related to the coordination number was greater than a given value (q). The elimination or jumping probability P'" were newly introduced. Almost all the data of porosity and tapping number followed the first-order rate equation and the rate constant k increased with decreasing the probability P' and with increasing the probability P". As the tapping number increased, the porosity approached a definite value, which varied according to the magnitude of the values of q and P"'.

Journal

  • YAKUGAKU ZASSHI

    YAKUGAKU ZASSHI 97 (11), 1207-1210, 1977

    The Pharmaceutical Society of Japan

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