【作者】 李满峰； 张华； 巨永林； 王经；

【Author】 Li Manfeng~(1,2),Zhang Hua~2,Ju Yonglin~2,Wang Jing~2 (1.Institute of Enviromental & Municipal Engineering,North China University of Water Conservancy and Electric Power,Zhengzhou 450011,China 2.School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

【机构】 华北水利水电学院环境与市政工程学院； 上海交通大学机械与动力工程学院；

【摘要】 本文使用高速动态分析仪对低温倾斜上升管内不同位置处弹状汽泡进行了可视化实验研究。对获得的液弹的运动速度进行了统计分析,研究了液弹运动速度的变化规律。结果表明:对于两个不同管径的管路,当倾斜角θ(相对水平方向的夹角)发生变化时,液弹的运动速度随着管径的不同呈现出不同的变化规律;随着倾斜角度的减小,液弹上升速度先增大后减小,在θ=60o和70o处达到最大值,且在管出口处,液弹的上升速度几乎不变。该文为进一步研究低温液氮沸腾两相弹状流发展过程中弹状汽泡运动速度提供参考依据。更多还原

【Abstract】 The velocity of the liquid slug has been experimental studied in different axial position of upward inclined pipe by using high speed motion analyzer.Statistical method was employed to analyze the data of the liquid slug velocity.The results showed that the velocity of the liquid slug was changed with various diameters of the pipe.For all cases,the velocities of the liquid slug increased first, and then decreased with decreased angles and were almost constant at the exit of pipes.These conclusions provide a basis for further study of the velocity of the Taylor bubble for the undeveloped liquid nitrogen boiling slug flow.更多还原