| 竖直矩形窄缝通道滑移汽泡聚合作用可视化实验研究 |
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| 引用本文： | 徐建军,陈炳德,王小军.竖直矩形窄缝通道滑移汽泡聚合作用可视化实验研究[J].原子能科学技术,2011,45(5):548-553. |
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| 作者姓名： | 徐建军 陈炳德 王小军 |
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| 作者单位： | 中国核动力研究设计院 ;空泡物理和自然循环重点实验室，四川 ;成都610041 |
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| 基金项目： | 中国核动力研究设计院空泡物理和自然循环重点实验室资助项目 |
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| 摘 要： | 采用高速摄像仪从宽面和窄面立体可视化观察了滑移汽泡间的聚合特性。研究结果表明，在低热流密度孤立汽泡区域，近壁滑移汽泡间的聚合作用过程较快，聚合重新形成的汽泡仍沿加热面平行滑移；在滑移汽泡间开始相互作用的影响距离约是其平均直径的2倍，滑移汽泡间的聚合作用是一种积极的作用，共同使得滑移汽泡的运动速度增加，有利于该区域附近换热的提高。最后探讨了核化生长汽泡间的作用及其对汽泡浮升的影响。
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| 关 键 词： | 滑移汽泡 聚合作用 窄缝 |
Experimental Visualization Coalesced Interaction of Sliding Bubble Near Wall in Vertical Narrow Rectangular Channel |
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| XU Jian-jun,CHEN Bing-de,WANG Xiao-jun.Experimental Visualization Coalesced Interaction of Sliding Bubble Near Wall in Vertical Narrow Rectangular Channel[J].Atomic Energy Science and Technology,2011,45(5):548-553. |
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| Authors: | XU Jian-jun CHEN Bing-de WANG Xiao-jun |
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| Affiliation: | Key Laboratory of Bubble Physics & Natural Circulation, Nuclear Power Institute of China, Chengdu 610041, China |
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| Abstract: | The characteristic of the coalesced sliding bubble was visually observed by wide side and narrow side of the narrow rectangular channel using high speed digital camera.The results show that the coalesced time among the sliding bubbles is quick,and the new formation of coalesced bubble is not lift-off,and it continues to slide along the heated surface in low heat flux for the isolated bubble region.The influence region is about 2 times projected area of the sliding bubble when the sliding bubbles begin to in... |
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| Keywords: | sliding bubble coalesced interaction narrow channel |
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