【摘要】 采用汽泡尺寸概率密度函数(PDF)分析的方法,研究了探测点径向位置对流型识别的影响。结果表明,受热工况下该影响不可忽视。考虑到探测点空间位置对受热工况流型识别的影响,同时为了简化测量与分析,本文提出了“两点判别法”。实验结果表明,该方法对于垂直受热圆管可以得出准确的流型识别结果。更多还原

【Abstract】 Flow regimes identification by statistical analysis of bubble size is applied, and the influence of spatial probe point on flow regimes identification is analyzed in this experiment. The experimental results show that this influence should not be ignored for heated state, in view of which the 揟wo Spatial Points Method?is provided to simplify the identification in this paper, and the experimental results show that flow regimes can be identified correctly by this method.更多还原