Void fraction distribution in vertically upward two phase flow

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