【摘要】 基于气液相变基础理论,以沸腾过程为切入点,试图探讨微尺度条件下气液相变的一些本质性问题.按照相变过程的时间序列,分析活化分子聚集体的性质、微小尺度对活化分子聚集体的影响、槽道尺寸对气泡生长过程的影响等几个方面,在一定程度上揭示了微尺度与常规尺度条件下相变过程的联系与区别.更多还原

【Abstract】 The fundamental theory of phase transition is used to analyze the characteristics of gasliquid phase transition in microscale boiling.The properties and growth of the homogeneous gasliquid phase transition of active molecular aggregation are analyzed.During the growth from molecular aggregation to vapor bubbles in a superheated liquid, the spatial scale influences the statistical properties of the molecules in metastable bulk phase, the dynamic properties of the aggregation growth process, and the bubble growth process. The theoretical analysis shows the effect of spatial dimensions and illustrates the different physical mechanisms between microscale and general phase transitions.更多还原