Bubble Dynamics In Nucleate Pool Boiling On Thin Wires In Microgravity
文献类型：期刊论文
| 作者 | Zhao JF(赵建福) ; Liu G; Wan SX(万士昕); Yan N
|
| 刊名 | Microgravity Science And Technology
 |
| 出版日期 | 2008 |
| 页码 | 81-89 |
| 通讯作者邮箱 | jfzhao@imech.ac.cn |
| 关键词 | Bubble Dynamics Nucleate Boiling Microgravity Marangoni Effect Heat-Transfer Gravity Departure |
| ISSN号 | 0938-0108 |
| 通讯作者 | Zhao, JF (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, 15 Beisihuan Xilu, Beijing 100080, Peoples R China. |
| 中文摘要 | A temperature-controlled pool boiling (TCPB) device has been developed to study the bubble behavior and heat transfer in pool boiling phenomenon both in normal gravity and in microgravity. A thin platinum wire of 60 mu m in diameter and 30 mm in length is simultaneously used as heater and thermometer. The fluid is R113 at 0.1 MPa and subcooled by 26 degrees C nominally for all cases. Three modes of heat transfer, namely single-phase natural convection, nucleate boiling, and two-mode transition boiling, are observed in the experiment both in microgravity aboard the 22nd Chinese recoverable satellite and in normal gravity on the ground before and after the space flight. Dynamic behaviors of vapor bubbles observed in these experiments are reported and analyzed in the present paper. In the regime of fully developed nucleate boiling, the interface oscillation due to coalescence of adjacent tiny bubbles is the primary reason of the departure of bubbles in microgravity. On the contrary, in the discrete bubble regime, it's observed that there exist three critical bubble diameters in microgravity, dividing the whole range of the observed bubbles into four regimes. Firstly, tiny bubbles are continually forming and growing on the heating surface before departing slowly from the wire when their sizes exceed some value of the order of 10(-1) mm. The bigger bubbles with about several millimeters in diameter stay on the wire, oscillate along the wire, and coalesce with adjacent bubbles. The biggest bubble with diameter of the order of 10 mm, which was formed immediately after the onset of boiling, stays continuously |
| 类目[WOS] | Engineering, Aerospace ; Thermodynamics ; Mechanics |
| 研究领域[WOS] | Engineering ; Thermodynamics ; Mechanics |
| 关键词[WOS] | HEAT-TRANSFER ; GRAVITY ; DEPARTURE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000260252100005 |
| 公开日期 | 2009-08-03 ; 2009-09-14 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/25854]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Zhao JF,Liu G,Wan SX,et al. Bubble Dynamics In Nucleate Pool Boiling On Thin Wires In Microgravity[J]. Microgravity Science And Technology,2008:81-89. |
| APA | 赵建福,Liu G,万士昕,&Yan N.(2008).Bubble Dynamics In Nucleate Pool Boiling On Thin Wires In Microgravity.Microgravity Science And Technology,81-89. |
| MLA | 赵建福,et al."Bubble Dynamics In Nucleate Pool Boiling On Thin Wires In Microgravity".Microgravity Science And Technology (2008):81-89. |
入库方式： OAI收割
来源：力学研究所
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