矩形断面流路内における沸騰に関する研究 : 上壁が加熱される流路の傾斜角度が気泡の挙動と伝熱特性に及ぼす影響(熱工学,内燃機関,動力など)

概要

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The purpose of this study is to clarify the boiling in an inclined channel with rectangular section and the behavior of the bubble generated from the heated upper wall experimentally and analytically. This channel is submerged into the saturated pure water at inclination angle θ from horizontal and both sides of the channel are opened. The value of θ is between 2 and 20°, the height H of the channel is between 3 and 7 mm and the length of the heated part of the upper wall is 10 and 20 mm. As a result, the behavior of the coalescent bubble depends mainly on the height and the inclination angle of the channel and it is classified into 4 types. Heat transfer and burnout heat flux are related to the behavior of the coalescent bubble. Tip velocity of the coalescent bubble is calculated by one-dimensional model and burnout heat flux is predicted with using one-dimensional model.
社団法人日本機械学会の論文
2002-10-25