上海交通大学学报(自然版) ›› 2013, Vol. 47 ›› Issue (10): 1509-1514.

• 数理科学和化学 • 上一篇    下一篇

低温管路中Taylor气泡形成位置预测公式

刘亦鹏1,王平阳1,蔺帅南1,赵先林2,杜朝辉1   

  1.  (1.上海交通大学 机械与动力工程学院,上海 200240; 2.河南教育学院 物理系,郑州 450046)
     
  • 收稿日期:2012-11-26 出版日期:2013-10-30 发布日期:2013-10-30
  • 基金资助:

    2012年河南省基础与前沿技术研究计划项目(122300410332),2011年上海交通大学研究生创新能力培养基金资助

Correlation of Position of Taylor Bubble Formation in Cryogenic Tube

LIU Yipeng1,WANG Pingyang1,LIN Shuainan1,ZHAO Xianlin2,DU Zhaohui1
  

  1. (1. School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China;2. Department of Physics, Henan Institute of Education, Zhengzhou 450046, China)
  • Received:2012-11-26 Online:2013-10-30 Published:2013-10-30

摘要:

使用粒子图像测速技术(PIV)和高速摄像技术对低温管路中由漏热产生的Taylor气泡形成过程进行了实验研究.将传统的流型转变理论和实验获得的流场结构相结合,建立了低温管路中Taylor气泡形成位置的预测公式,考虑了湍流强度、漏热、气泡上升速度和管路倾角等众多因素的影响.公式适用范围较广,其计算值与文中实验结果最大误差不超过±7.9%,与文献结果的最大误差也在±20%以内.
 
 

关键词: 低温流体, Taylor气泡形成位置, 预测公式, 湍流强度, 粒子图像测速技术

Abstract:

The formation process of Taylor bubble caused by the heat leak in cryogenic tubes was investigated using the particle image velocimetry (PIV) technique and high speed camera. A correlation for Taylor bubble formation was developed with the consideration of turbulence suppression, tube inner diameter, fluid properties and inclination angle, etc. The predicted value of the position of Taylor bubble formation has a maximum error of ±7.9% compared with the experimental data in present study, and a maximum error of ±20% compared with the experimental data from the reference.

Key words: cryogenic fluid, the position of Taylor bubble formation, correlation, turbulence intensity, particle image velocimetry(PIV)

中图分类号: