チャネルにおける超流動ヘリウムの熱伝達の研究

概要

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The effect of interal convection on heat transfer to superfluid helium (He II) is measured in the rectangular channel (1 mm×10 mm×120 mm in length) with an open upper end and closed lower end. The heater at the lower end induces upward normal fluid flow and downward superfluid flow. The test section is located at a distance of 50 mm from the open end of the channel. The results show that normal fluid flow does not influence the heat transfer. Heat transfer coefficients in the mode of single phase flow are equal to the Kapitza conductance and those in the mode of two phase flow are about 0.6 to 1.0 times as large as the Kapitza conductance.
社団法人日本機械学会の論文
1989-06-25