原子能科学技术2012，Vol.46Issue(z1)：231-235,5.
气泡破裂产生膜液滴现象可视化实验研究
Visualization Study of Film Drops Produced by Bubble Bursting
马超 1薄涵亮1
作者信息
- 1. 清华大学核能与新能源技术研究院,北京 100084
- 折叠
摘要
Abstract
The phenomenon that bubble bursting results in drops production is common in the steam generator of the nuclear power plant, and the fine drops generated by this way is one of the most important source of the drop entrainment in the vapor stream. The visualization experiment about the film drops produced by the bursting bubbles at a free water surface was studied using a high-speed video camera. The results show that the bubble cap breaks up in a single point, within the limits of bubble size in the experiment at present. The whole process can be distinguished into four successive stages: A primary inertial drainage, the bubble cap puncture at the foot or on the top, the film rolls-up and the liquid ring appearing with the hole expanding, and fine film drops emission under the effect of destabilization of a Rayleigh-Taylor type. The expression about the bubble radius and the film drops number is obtain by fitting the experiment data at the bubble radius range from 3-25 mm. The result trend agrees well with the previous work.关键词
高速摄像/气泡破裂/膜液滴数量Key words
high-speed camera/ bubble bursting/ film drop number分类
能源科技引用本文复制引用
马超,薄涵亮..气泡破裂产生膜液滴现象可视化实验研究[J].原子能科学技术,2012,46(z1):231-235,5.
