【摘要】 沸腾工况汽液两相流汽泡尺寸的研究对于深入理解两相流动特性以及相关模型的发展具有重要意义。文中采用双探头光学探针对受热上升管内汽液两相流汽泡尺寸的径向分布特性进行了测量与研究。此外,通过对汽泡尺寸概率密度数的分析,得出了对应工况的两相流流型,根据理论分析及实验结果,总结了汽泡尺寸径向分布与流型的关系。更多还原

【Abstract】 Investigation of bubble size in boiling two-phase flow is significant for the further understanding of two-phase flow structure and the development of two-phase models.The radial distribution characteristics of bubble size were studied through the measurement in an upward-heated tube using dual-sensor optical probe. Besides,the flow patterns were identified according to the analyses of probability density function of bubble chord length. The (relationship) between bubble size radial distribution and flow patterns in upward-heated tube was drawn on the basis of theoretical analyses and experimental results.更多还原