垂直管内汽－液两相间传质及界面对冷凝过程的影响

本文根据冷凝的控制方程和相应的边界条件，得到了传质及界面对冷凝过程影响的解析解，并对影响冷凝过程的机制和主要因素，如表征蒸汽及界面速度的因子Ｂ、表征由传质引起动量传递的因子φ以及反映传质及界面综合作用的因子ω分别进行了讨论．结果表明，传质及界面对冷凝过程有明显的影响，本文解与努塞尔解有显著差别．

The influence of mass transfer and interface between vapor-liquid two-phase on condensation inside a vertical tube

Based on the governing equation and the associated boundary conditions, the analysis solutions for the condensation are obtained, and the effect mechanism and main factors of mass transfer and interface on the condensate are discussed, such as the factor B expressing interfacial velocity effect, the factor characterizing effect of mass transfer, and the factor w denoting comprehensive effet of mass tranfer and interface on the condensation.The calculation ressults show that mass transfer and interface have obvious influence on the condensation. The present study differs from that of the Nusselt's theory.