摘要
通过理论分析和实验，研究了细小传热管内水和空气高速两相流动的紊流换热特性，确认了这种两相流动具有很高的换热系数。其机理是薄液膜的蒸发换热。只要管壁面上存在液膜，在低壁温时就可以获得稳定的高换热性能。理论分析较好地预示了实验结果。
Theoretical and experimental study has been performed on the heat transfer of high velocities two phase of water and air with turbulent two phase flow in a uniformly heated micro tube.The theoretical analysis show that the mechanism of heat transfer is evaporation of very thin liquid film layer and it predicts experimental results well.
出处
《中国电机工程学报》
EI
CSCD
北大核心
1999年第6期80-84,共5页
Proceedings of the CSEE
关键词
两相流
液膜蒸发
强化传热
传热管
冷水
空气
two phase flow
evaporation of film
phase change
enhancement of heat transfer
