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| 通孔金属泡沫表面的池沸腾实验研究 | |
| 引用本文： | 徐治国,屈治国,李定国,赵长颖,陶文铨,卢天健,王美琴.通孔金属泡沫表面的池沸腾实验研究[J].工程热物理学报,2009,30(10). |
| 作者姓名： | 徐治国 屈治国 李定国 赵长颖 陶文铨 卢天健 王美琴 |
| 作者单位： | 1. 西安交通大学动力工程多相流国家重点实验室,陕西西安,710049 2. 西安交通大学强度与振动教育部重点实验室,陕西西安,710049 3. 川庆钻探工程有限公司长庆井下技术作业公司,陕西西安,710018 |
| 基金项目： | 国家重大基础研究发展计划，国家自然科学基金，国家高技术研究发展计划，国家"111"引智计划 |
| 摘 要： | 本文对烧结有厚度为30 mm的高孔隙率通孔铜泡沫的水平表面的池沸腾进行实验研究.并采用高速摄像仪对泡沫表面的汽泡生长形貌进行了可视化研究,研究了壁面过热度对热流密度、汽泡脱离直径、汽泡生长周期的影响关系.结果表明由于本文所研究的通孔泡沫厚度较大,限制了汽泡的脱离,使传热性能低于光表面,但是使沸腾起始点降低至3℃. |
| 关 键 词： | 金属泡沫 池沸腾 汽泡生长周期 汽泡脱离直径 |
EXPERIMENTAL STUDY OF POOL BOILING ON SURFACE OF METAL FOAM WITH OPEN CELLS |
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| XU Zhi-Guo,Qu Zhi-Guo,LI Ding-Guo,ZHAO Chang-Ying,TAO Wen-Quan,LU Tian-Jian,WANG Mei-Qin.EXPERIMENTAL STUDY OF POOL BOILING ON SURFACE OF METAL FOAM WITH OPEN CELLS[J].Journal of Engineering Thermophysics,2009,30(10). | |
| Authors: | XU Zhi-Guo Qu Zhi-Guo LI Ding-Guo ZHAO Chang-Ying TAO Wen-Quan LU Tian-Jian WANG Mei-Qin |
| Institution: | XU Zhi-Guo~1 QU Zhi-Guo~1 LI Ding-Guo~1 ZHAO Chang-Ying~1 TAO Wen-Quan~1 LU Tian-Jian~2 WANG Mei-Qin~3 (1.State Key Laboratory of Multiphase Flow in Power Engineering,Xi'an Jiaotong University,Xi'an 710049,China,2.MOE Key Laboratory for Strength and Vibration,3.CCDC Changqing Downhole Technology Company,Xi'an 710018,China) |
| Abstract: | The pool boiling performance on a horizontal surface of high porosity copper foam with a thickness of 30 mm is experimentally studied.The bubble growth visualization in a nucleate boiling process is recorded by a high-speed camera.The influences of wall superheat on a wall heat flux, bubble growth cycle and bubble departure diameter are investigated.It reveals that the total nucleate pooling heat transfer coefficient is lower than that on a smooth surface since the foam thickness is too high to offer much f... |
| Keywords: | metal foam pool boiling bubble growth cycle bubble departure diameter |
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