液面を局所的に加熱された水平液体層内の流れと熱移動

概要

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Heat transfer from a heated wire and a heated vertical plate, which were in contact with the top of liquid surface, was studied experimentally. The curve representing the heat-transfer coefficient as a function of the temperature difference between the heaters and cooled tray could be divided into four parts. The range of each part depended closely upon the size of heaters, the depth of tray and the liquid properties. The mechanism of heat transfer from the heaters in each part was discussed. The following was shown. In the first part, where the temperature difference was the smallest, the heat was mainly transferred by conduction. The heat transfor was mainly due to natural convection in the second part, and was mainly due to Marangoni convection in the fourth part. The third part could be considered a mixed convection regime. Furthermore, it was found that the transition from the second part to the third part was suppressed by the meniscus of liquid surface which contacted with the heaters.
一般社団法人日本機械学会の論文
1995-02-25