Measurement of Circulation Time Distribution in a Shaking Vessel.

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  • 揺動撹はん槽内の循環時間分布の測定
  • ヨウドウ カクハンソウナイ ノ ジュンカン ジカン ブンプ ノ ソクテイ

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Abstract

The circulation time distribution of a liquid in a horizontally shaking vessel was observed by tracing particle motion with the liquid. The distribution was affected by the operating conditions. The distribution was monotonous and the flow in the vessel was almost rotational flow at large Fr number. The circulation flow rate qc derived from the mean circulation time was correlated with<BR>Nqc=22Fr2.1Re0.2 (d/D) -2.6<BR>where Nqc, Fr and Re were the dimensionless numbers defined as qc/Nd3, N2D/g and Nd2/ν, respectively, and qc was defined as πD2H /4tc. It was found from the comparison of the mean circulation time with the mixing time that complete mixing was achieved after about 16 circulations.

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