Abstract: The present investigation considers the interactions among active sites or bubbles and the nonlinear dynamic characteristics of the boiling processes to analyze the stochastic and nonlinear features of boiling systems. A bubble size distribution function is derived by using bubble number balance. A new method is then proposed for predicting pool nucleate boiling heat transfer flux. The present model is in good agreement with previous experimental results, which indicates that the theory presented is more reasonable than traditional theories.

摘要： 考虑多个活化核心或汽泡间非线性相互作用及核化过程的非线性动力学特征 ,指出沸腾系统具有强非线性和随机性等特征 .从随机性的物理机理出发 ,利用汽泡数目平衡的概念导出了汽泡尺寸分布函数 ,在此基础上提出了计算核态沸腾换热的新思路 .计算结果与实验对比吻合得很好 .