Numerical simulation of single bubble pool boiling in different gravity conditions

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	Numerical simulation of single bubble pool boiling in different gravity conditions
	Zhao JF(赵建福); Li ZD(李震东); Zhang L(张良); Zhao, JF (reprint author), CAS, Key Lab Micrograv, Natl Micrograv Lab, Inst Mech, Beijing 100190, Peoples R China
会议录名称	RECENT PROGRESSES IN FLUID DYNAMICS RESEARCH - PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON FLUID MECHANICS
	2011
页码	565-568
会议名称	6th International Conference on Fluid Mechanics
会议日期	JUN 30-JUL 03, 2011
会议地点	Guangzhou, PEOPLES R CHINA
摘要	In this paper, the growth processes of a single bubble on a fixed single site in different gravity are numerically investigated for saturated water at 0.1 MPa. The departure diameter decreases with the decrease of the wall superheat, while the growth period increases. Both the growth period and departure diameter decrease with the decrease of the contact angle, but increase with the decrease of gravity. The numerical results of single bubble boiling indicate that the heat transfer through the micro-wedge region has a very important contribution to the whole heat transfer in boiling. The area-averaged heat fluxes in different gravity are approximately proportional to the 1.5th power of the wall superheat when the number density of active nucleation sites fixes, which is consistent with empirical correlation based on experiments in normal gravity.
关键词	Nucleate Pool Boiling Bubble Growth Departure Diameter Level-set Method Heat-transfer Nucleate Vapor Dynamics Surface Merger Growth Model
课题组名称	NML微重力两相流与燃烧
ISBN号	978-0-7354-0936-1
收录类别	CPCI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/46831
专题	微重力重点实验室
通讯作者	Zhao, JF (reprint author), CAS, Key Lab Micrograv, Natl Micrograv Lab, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhao JF,Li ZD,Zhang L,et al. Numerical simulation of single bubble pool boiling in different gravity conditions[C]RECENT PROGRESSES IN FLUID DYNAMICS RESEARCH - PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON FLUID MECHANICS,2011:565-568.

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