Two-phase flow and pool boiling heat transfer in microgravity

	Two-phase flow and pool boiling heat transfer in microgravity
	Zhao JF(赵建福)
刊名	International Journal of Multiphase Flow
	2010
通讯作者邮箱	jfzhao@imech.ac.cn
卷号	36 期号:2 页码:135-143
关键词	Microgravity Two-phase flow Flow pattern Heat transfer
ISSN号	0301-9322
通讯作者	赵建福
合作状况	其它
中文摘要	Researches on two-phase flow and pool boiling heat transfer in microgravity, which included groundbased tests, flight experiments, and theoretical analyses, were conducted in the National Microgravity Laboratory/CAS. A semi-theoretical Weber number model was proposed to predict the slug-to-annular flow transition of two-phase gas–liquid flows in microgravity, while the influence of the initial bubble size on the bubble-to-slug flow transition was investigated numerically using the Monte Carlo method. Two-phase flow pattern maps in microgravity were obtained in the experiments both aboard the Russian space station Mir and aboard IL-76 reduced gravity airplane. Mini-scale modeling was also used to simulate the behavior of microgravity two-phase flow on the ground. Pressure drops of two-phase flow in microgravity were also measured experimentally and correlated successfully based on its characteristics. Two space experiments on pool boiling phenomena in microgravity were performed aboard the Chinese recoverable satellites. Steady pool boiling of R113 on a thin wire with a temperature-controlled heating method was studied aboard RS-22, while quasi-steady pool boiling of FC-72 on a plate was studied aboard SJ-8. Ground-based experiments were also performed both in normal gravity and in short-term microgravity in the drop tower Beijing. Only slight enhancement of heat transfer was observed in the wire case, while enhancement in low heat flux and deterioration in high heat flux were observed in the plate case. Lateral motions of vapor bubbles were observed before their departure in microgravity. The relationship between bubble behavior and heat transfer on plate was analyzed. A semi-theoretical model was also proposed for predicting the bubble departure diameter during pool boiling on wires. The results obtained here are intended to become a powerful aid for further investigation in the present discipline and development of two-phase systems for space applications.
学科主题	微重力流体力学
类目[WOS]	Mechanics
研究领域[WOS]	Mechanics
关键词[WOS]	GAS-LIQUID FLOW ; MIR-SPACE-STATION ; PATTERN TRANSITION ; BUBBLE DYNAMICS ; REDUCED GRAVITY ; PRESSURE-DROP ; SLUG FLOW ; ABOARD
收录类别	SCI
语种	英语
WOS记录号	WOS:000274972200006
公开日期	2010-01-28
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/33046]
专题	力学研究所_国家微重力实验室
推荐引用方式 GB/T 7714	Zhao JF. Two-phase flow and pool boiling heat transfer in microgravity[J]. International Journal of Multiphase Flow,2010,36(2):135-143.
APA	赵建福.(2010).Two-phase flow and pool boiling heat transfer in microgravity.International Journal of Multiphase Flow,36(2),135-143.
MLA	赵建福."Two-phase flow and pool boiling heat transfer in microgravity".International Journal of Multiphase Flow 36.2(2010):135-143.