Effect of Superheating on Heat Transfer from a Good Thermal Conductorin a Two-dimensional Channel to He II below the .LAMBDA.-point Pressure

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  • 二次元流路中の熱良導体からλ点圧力以下のＨｅ　ＩＩへの熱伝達における過熱の影響
  • 二次元流路中の熱良導体からλ点圧力以下のHe 2への熱伝達における過熱の影響
  • 2ジゲン リュウロチュウ ノ ネツ リョウドウタイ カラ ラムダテン アツリョク イカ ノ He 2 エノ ネツ デンタツ ニ オケル カネツ ノ エイキョウ
  • Effect of Superheating on Heat Transfer from a Good Thermal Conductorin a Two-dimensional Channel to He II below the λ-point Pressure

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Abstract

Heat transfer characteristics in He II have been investigated in relation to superheating. When a good thermal conductor in a narrow two-dimensional channel is heated above the critical heat flux of the λ-transition, superheated He I nucleates in the hottest area of the conductor covered with superheated He II. The spread of superheated He I, which has low thermal conductivity, forms an intermediate state in which superheated He I coexists with superheated He II. Superheated He I together with superheated He II is apparently stabilized since part of the heat cut off by superheated He I tends to flow in the conductor. Higher heat input turns the intermediate state into a mixed state where superheating and boiling alternate irregularly. (Translation of the article originally published in Cryogenics 49 (2009) 700-706)

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