Measurement of Velocity Profiles of Fluid in a Liquid Spouted Bed by Using a Laser Doppler Velocimeter.

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  • レーザードップラー流速計による固液系噴流層内における流体速度の測定
  • レーザー ドップラー リュウソクケイ ニ ヨル コエキケイ フンリュウソウナイ

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Abstract

Velocity profiles of fluid in a spouted bed were measured by using a laser doppler velocimeter. The fluid used was a liquid, the refractive index of which was adjusted to that of the solid particles. Results indicate that 1) the normalized velocity profiles are independent of Reynolds number, 2) the spouted bed has a recirculating zone similar to that of the flow through a sudden expansion, and 3) the diameter of the spout increases with increasing height.

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