Experimental analysis of bubble growth, departure and interactions during pool boiling on artificial nucleation sites
Experimental analysis of bubble growth, departure and interactions during pool boiling on artificial nucleation sites
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DOI：
10.1016/j.expthermflusci.2008.04.004
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发表时间：
2008-09
影响因子：
3.2
通讯作者：
S. Siedel;S. Cioulachtjian;J. Bonjour
中科院分区：
文献类型：
--
作者：
S. Siedel;S. Cioulachtjian;J. Bonjour
本文描述了戊烷池沸腾的实验结果，简化为单个或两个相邻成核点沸腾的情况。用高速摄像机记录了不同壁面条件下气泡的生长过程。气泡体积已被绘制为时间的函数，并提出了一个实验的增长规律。在生长过程中观察到振荡，显示了一个气泡与从同一成核位点释放的前一个气泡的相互作用。横向聚结已经可视化，图像已经带来了前面的界面变形的毛细管效应。
The present work describes experimental results of pentane pool boiling, simplified to the cases of boiling on a single or on two adjacent nucleation sites. Bubbles growths have been recorded by a high speed camera under various wall superheat conditions. Bubble volume has been plotted as a function of time, and an experimental growth law has been proposed. Oscillations were observed during growth, showing the interaction of one bubble with the preceding bubble released from the same nucleation site. Lateral coalescence has been visualized and the images have brought to the fore the capillary effects on the distortion of the interface.