一、引言 理论和实验研究表明,高过冷度时膜沸腾传热将主要受流动参数和特性参数的支配,而与壁面温度的高低很少有关,存在着所谓的“自模化”。然而,实验观察和研究也显露出热负荷比较高时,膜沸腾会因微小的加热波动出现急剧的壁温上升,此时,“自模化”已不再存在,壁温将对传热有明显的影响。新的分析表明,极高过冷度液体的流动膜沸腾势必要求壁温急剧上升来维持很高的传热强度,并且这种壁温上升现象也不同于 I. INTRODUCTION Theoretical and experimental studies show that the film boiling heat transfer will be mainly dominated by the flow parameters and the characteristic parameters when the supercooling degree is low, and is rarely related to the wall temperature. So-called “self-molding” exists. However, experimental observations and studies have also revealed that when the heat load is relatively high, the membrane boiling results in a sharp rise in wall temperature due to slight heating fluctuations, at which point “self-mold” no longer exists and the wall temperature will have an effect on heat transfer Obvious impact. New analysis shows that the boiling of very high subcooled liquid flow film will inevitably require the wall temperature to rise sharply to maintain a high heat transfer strength, and this phenomenon is also different from the wall temperature rise