收稿日期: 2014-02-25
修回日期: 2014-04-15
网络出版日期: 2015-01-15
基金资助
国家自然科学基金(51176202)资助
Numerical study of transient bubble growth and collapse in microscale
Received date: 2014-02-25
Revised date: 2014-04-15
Online published: 2015-01-15
李帆 , 倪明玖 , 李骥 . 微尺度瞬态气泡生长及湮灭的数值模拟[J]. 中国科学院大学学报, 2015 , 32(1) : 31 -37 . DOI: 10.7523/j.issn.2095-6134.2015.01.006
A three-dimensional numerical analysis of the growth and collapse of a micro-bubble under pulsed heating is carried out in this work. Geometry reconstruction and interface tracking methods are used to trace the evolution of the free surface flow. Details of the velocity and temperature in the liquid and vapor phases during the growth and collapse of the vapor bubble are obtained. Numerical results for the growth and collapse of the micro-bubble are compared with those of experiments under similar conditions. Comparisons show that the volume evolution of the vapor bubble is well predicted by the numerical model.
Key words： gas-liquid phase transition; micro-heater; micro-bubble; heat transfer
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