【摘要】 对于两相流空泡份额分布的实验研究，通常只能在有限工况下进行，而对其基本现象的描述也仅局限于特定的实验工况。为此，本文总结分析了以往一些研究者的实验结果，对圆管内垂直上升两相流空泡份额的径向分布情况进行了比较系统的描述。根据这些结果，进一步分析得出了典型的垂直上升流中空泡份额径向分布曲线与流型的对应关系，通过与已有实验结果的比较，说明该对应关系无论从实验结果还是机理解释上都是可信的。更多还原

【Abstract】 Since the distribution of void fraction is important in the technology of two phase flow,some experiments have been developed.But these experiments can only be taken under limited conditions,so the descriptions of foundational phenomena are also only limited in some special experimental conditions.Here the authors analyzed some results of these experiments and described the radial distribution of void fraction in vertically upward two phase flow.According to the analysis,got the typical relationship between the void fraction curve and flow pattern in the vertical upward flow,and after the comparison with the former results,proved that the relationship is reasonable both from the angle of the results of experiments and mechanistic analysis.更多还原