微液层模型预测过冷沸腾的临界热流密度

工程热物理学报 , 2002, 23(4): 467-469.

1.中国科学院工程热物理研究所,北京,100080

2.中国科学院工程热物理研究所,北京,100080

基金项目: 中国科学院"百人计划"

CRITICAL HEAT FLUX PREDICTION OF SUBCOOLED BOILING BASED ON THE MICROLAYER MODEL

本文利用微液层模型对过冷沸腾的临界热流密度(CHF)进行了理论预测.过冷沸腾的强化换热主要是通过单个气泡的形成和消失造成的对流换热强化而引起的.对等热流面,CHF在高过冷区趋近于常数;对等温面,CHF随过冷度的增加而增加.过冷度增加时,蒸发换热量减少,总热流密度主要由蒸发区外的导热引起.

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