冷却円柱周りの水蒸気の凝縮を含む流れの物質伝達（第２報）　　―表面温度１２０～２５０Ｋにおけるミストの付着を伴う物質伝達―

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  • Mass Transfer around a Cold Cylinder with Condensation of Vapor (2nd Report) -Mass Transfer Including Mist Attachment at Surface Temperatures from 120 to 250K-
  • レイキャク エンチュウ マワリ ノ スイジョウキ ノ ギョウシュク オ フクム ナガレ ノ ブッシツ デンタツ ダイ2ホウ ヒョウメン オンド 120 250K ニ オケル ミスト ノ フチャク オ トモナウ ブッシツ デンタツ
  • Mass Transfer around a Cold Cylinder with Condensation of Vapor (2nd Report)
  • —Mass Transfer Including Mist Attachment at Surface Temperatures from 120 to 250K—
  • —表面温度120～250Kにおけるミストの付着を伴う物質伝達—

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A study on mass flux of water vapor and mist around a cold cylinder (120–250K) was conducted by means of both experimental and numerical methods. The cylinder was placed in a forced convection air flow at a speed of 1m/sec. The experimental study revealed that the mass flux of the cylinder decreases rapidly under the temperature of about 200K. The mass flux at the cylinder temperature of 120K is one-sixth of that of 240K. The numerical study could simulate the mass flux around the cylinder in which we used a new phase change model with considering the transfer of the particles of mist. By this calculation we found some characteristics of the mass transfer of the cold cylinder which is unique when the temperature of the cylinder becomes cold enough to occur condensation.

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