原子能科学技术Issue(9)：1544-1548,5.DOI:10.7538/yzk.2013.47.09.1544
竖直大圆管内两相流动界面输运过程研究
Study on Interfacial Area Transport of Two-phase Flow in Vertical and Large Ci rcular Pipe
摘要
Abstract
Local distribution of the interfacial area concentration (IAC) and void fraction of air-water two-phase flow in a vertical pipe were investigated by using the measurement of optical fiber probe . The inner diameter of the circular pipe was 100 mm , and superficial gas and liquid velocities ranged from 0 to 0.1 m/s and from 0 to 1.0 m/s , accordingly .It is found that the bubble passing through frequency dominates the radial distribution profile of IAC .The axial interfacial area concentration was calculated based on the interfacial area transport model of Ishii-Kim .In the mean time ,the analysis of four bubble interaction mechanisms determining the change of IAC show s that it is the local pressure inside the pipe that dominates the value of IAC in the axial direction .A new correlation including the effect of pressure was given for calculating the axial IAC .关键词
界面输运/大管径/两相流Key words
interfacial area transport/large diameter pipe/two-phase flow分类
能源科技引用本文复制引用
孙波,孙立成,幸奠川,刘靖宇,田道贵..竖直大圆管内两相流动界面输运过程研究[J].原子能科学技术,2013,(9):1544-1548,5.基金项目
国家自然科学基金资助项目（51076034）；中央高校科研专项基金资助项目（HEUCFZ1122）；重点实验室基金资助项目 （）
