曲がり管内気液二相流に及ぼす遠心力の影響に関する研究

  • 浅野 等
    神戸大学大学院工学研究科機械工学専攻
  • 竹中 信幸
    神戸大学大学院工学研究科機械工学専攻

書誌事項

タイトル別名
  • A Study on Effect of Centrifugal Force on Gas-Liquid Two-Phase Flow in a Spiral Tube
  • マガリ カン ナイ キエキ 2ソウリュウ ニ オヨボス エンシンリョク ノ エイキョウ ニ カンスル ケンキュウ

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抄録

  To clarify the effect of the centrifugal force on phase distribution of gas-liquid two-phase flow, air-water two-phase annular flows in an Archimedes spiral tube were visualized by thermal neutron radiography, and the two-dimensional void fraction distributions were quantitatively measured by an umbra method. An aluminum tube of 8 mm I.D. was coiled in a plane and placed vertically. The cross-sectional averaged void fractions were correlated by the drift flux model for each flow direction. From the two dimensional void fraction distributions, the center of liquid mass under each condition was measured. The condition of inversion whether the liquid phase tends to flow along the inside or outside of spiral tube could be obtained. The condition of the inversion could be correlated by the ratio of body force on the gas and the liquid phases, that is, centrifugal force and gravity.

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