Flow Visualization in Staggered Banks of Tubes

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  • B201 千鳥配列の円管群流路内の流れの可視化
  • チドリ ハイレツ ノ エンカングン リュウロナイ ノ ナガレ ノ カシカ

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Abstract

The X-shaped intersecting flow is shown in staggered banks of tubes. The staggered arrangement is more effective from the heat transfer and fluid control standpoint. Experiments using a particle tracing method are performed to visualize the flow in the staggered banks. of tubes. In order to determine the flow mechanism, velocities and pressures in tube banks are also measured using a two-dimensional laser Doppler velocimetry and a piezometer, respectively. It is disclosed that the flow characteristics depend on the aspect ratio and the diagonal distance in tube banks. The characteristics of hydraulic resistance in tube banks are also clarified.

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