| 微槽群结构对微纳复合表面汽泡周期的影响 |
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| 引用本文： | 戴新龙,叶伏秋,胡学功,周文斌,栾义军,于樱迎,唐瑾晨.微槽群结构对微纳复合表面汽泡周期的影响[J].吉首大学学报(自然科学版),2017,38(4):19-22. |
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| 作者姓名： | 戴新龙 叶伏秋 胡学功 周文斌 栾义军 于樱迎 唐瑾晨 |
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| 作者单位： | （1.吉首大学物理与机电工程学院，湖南 吉首 416000;2.中国科学院工程热物理研究所，北京 100190） |
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| 基金项目： | 国家自然科学基金资助项目（51376178） |
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| 摘 要： | 将涂有250 nm钛纳米涂层，且具有不同微尺度结构的微槽群竖直放置，采用高速摄影技术对热沉中的汽泡周期进行可视化研究.研究结果表明：当热流密度较小时，汽泡周期随着微槽深宽比的增加而减小;随热流密度的增大，汽泡周期逐渐减小;微尺度效应对汽泡周期的影响随着热流密度的增加而减弱.
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| 关 键 词： | 微尺度效应 微纳复合结构 汽泡周期 等待时间 |
Effects of Microgrooves Structure on Bubble Period on Surfaces with Micro-Nano Composite Structure |
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| DAI Xinlong,YE Fuqiu,HU Xuegong,ZHOU Wenbin,LUAN Yijun,YU Yingying,TANG Jinchen.Effects of Microgrooves Structure on Bubble Period on Surfaces with Micro-Nano Composite Structure[J].Journal of Jishou University(Natural Science Edition),2017,38(4):19-22. |
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| Authors: | DAI Xinlong YE Fuqiu HU Xuegong ZHOU Wenbin LUAN Yijun YU Yingying TANG Jinchen |
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| Institution: | （1.College of Physics and Electromechanical Engineering，Jishou University，Jishou 416000，Hunan China;2.Institute of Engineering Thermophysics，Chinese Academy of Sciences，Beijing 100190，China） |
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| Abstract: | The visualization study of the period of bubble behavior in the microgroove heat sinks was implemented by high speed photography technique.The microgroove plates were vertically placed and coated with 250 nm titanium nano coating to generate micro-nano composite structure surface.The results showed that when the heat flux density was small，the bubble period decreased with the increase of micro groove depth-width ratio;with the increase of heat flux density，bubble period decreased，and the micro-scale effect on bubble period was weaken as well. |
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| Keywords: | micro-scale effect micro-nano composite structure bubble period waiting time |
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