Lateral motion and departure of vapor bubbles in nucleate pool boiling on thin wires in microgravity
文献类型：会议论文
| 作者 | Zhao JF(赵建福) ; Wan SX(万士昕); Liu G; Li ZD; Liu YH; Yan N; Zhao JF
|
| 出版日期 | 2007 |
| 会议名称 | 5th International Conference on Fluid Mechanics |
| 会议日期 | AUG 15-19, 2007 |
| 会议地点 | Shanghai, PEOPLES R CHINA |
| 关键词 | Microgravity Nucleate Pool Boiling Lateral Motion Bubble Departure Diameter Marangoni Effect Heat-Transfer |
| 页码 | 550-553 |
| 通讯作者 | Zhao JF |
| 中文摘要 | A space experiment on bubble behavior and heat transfer in subcooled pool boiling phenomenon has been performed utilizing the temperature-controlled pool boiling (TCPB) device both in normal gravity in the laboratory and in microgravity aboard the 22(nd) Chinese recoverable satellite. The fluid is R113 at 0.1 MPa and subcooled by 26 degrees C nominally. A thin platinum wire of 60 mu m in diameter and 30mm in length is simultaneously used as heater and thermometer. Only the lateral motion and the departure of discrete vapor bubbles in nucleate pool boiling are reported and analyzed in the present paper. A scale analysis on the Marangoni convection surrounding a bubble in the process of subcooled nucleate pool boiling leads to formulas of the characteristic velocity of the lateral motion and its observability. The predictions consist with the experimental observations. Considering the Marangoni effect, a new qualitative model is proposed to reveal the mechanism underlying the bubble departure processes and a quantitative agreement can also be acquired. |
| 收录类别 | CPCI-S |
| 会议录 | New Trends In Fluid Mechanics Research - Proceedings Of The Fifth International Conference On Fluid Mechanics
 |
| 会议录出版者 | Beijing |
| 会议录出版地 | Tsinghua University Press |
| 语种 | 英语 |
| ISSN号 | 978-7-302-15894-3 |
| WOS记录号 | WOS:000254042000180 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/25468]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 通讯作者 | Zhao JF |
| 推荐引用方式 GB/T 7714 | Zhao JF,Wan SX,Liu G,et al. Lateral motion and departure of vapor bubbles in nucleate pool boiling on thin wires in microgravity[C]. 见:5th International Conference on Fluid Mechanics. Shanghai, PEOPLES R CHINA. AUG 15-19, 2007. |
入库方式： OAI收割
来源：力学研究所
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