サブクール液中に離脱した合体蒸気泡の消滅

概要

論文の詳細を見る
Experiments on pool transition boiling of water under atmospheric pressure on a heated surface 10mm in diameter were conducted for subcooling 15-50K. The mass flux of condensation of a detached coalescent vapor bubble was experimentally estimated by a mathematical model based on the mass transfer mechanism of condensation. As a result, it is clarified that the mass flux of condensation of the detached bubble was influenced by the initial growing velocity of a vapor bubble immediately following the detached bubble. The disappearance velocity of the detached bubble defined as a ratio of the bubble diameter at the departure to the time required until the disappearance, is in the range 0.2 to 2.0m/sec. The disappearance velocity is proportional to the initial growing velocity of the bubble, to the square of the heat flux of the heated surface and to the cube of the wall superheat, separately.
一般社団法人日本機械学会の論文
1986-05-25