过冷沸腾汽泡顶部射流可视化实验研究  

Visualization of bubble-top jet flow

作　　者：王昊[1] 彭晓峰[1] 王补宣[1] 林唯耕[2] 潘钦[2] 

机构地区：[1]清华大学热能工程系,北京100084 [2]清华大学工程与系统科学系

出　　处：《热科学与技术》2003年第3期279-282,共4页Journal of Thermal Science and Technology

基　　金：国家自然科学基金资助 ( 5 99760 16) ;国家"973"重大基础研究项目支持 ( G2 0 0 0 0 2 63 0 1)

摘　　要：通过高速摄像并配合激光 PIV技术 ,对过冷沸腾中微小汽泡顶部射流进行细致观察 ,确认过冷沸腾中顶部射流的存在 ,测量显示其速度场 ,具体分析讨论此类射流与汽泡生长的联系。High\|speed photography and laser PIV (particle image velocimetry) technology were applied in the study of the jet flow on top of sub\|cooled boiling bubbles. In the experiments, heated ultra\|thin platinum wires were used to generate vapor bubbles. Based on the velocity field measured, the relationship between the jet flow and the development of the bubbles were discussed.

关 键 词：过冷沸腾 汽泡 射流 激光PIV技术 沸腾换热 

分 类 号：TK124[动力工程及工程热物理—工程热物理]