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	Temperature distributions around stationary vapor bubbles
	Christopher, D.M. ; Peng Nan ; Meng Meng ; Li Si
	2010-05-11 ; 2010-05-11
关键词	Practical Theoretical or Mathematical/ bubbles natural convection Navier-Stokes equations rotational flow temperature distribution/ temperature distributions stationary vapor bubbles heated surface Marangoni flow natural convection Navier-Stokes equations heated plate buoyancy flow/ A4755K Multiphase flows A4725Q Convection and heat transfer A4710 General fluid dynamics theory, simulation and other computational methods A4730 Rotational flow, vortices, buoyancy and other flows involving body forces E2130 Fluid mechanics and aerodynamics (mechanical engineering) E2120 Heat and thermodynamic processes (mechanical engineering) E0210L Numerical analysis
中文摘要	The temperature distributions around vapor bubbles both on top of and underneath a heated surface were measured for different bubble sizes and different subcoolings to evaluate the effect of Marangoni flow and natural convection the flow field around vapor bubbles. Comparison of the measured temperature distributions to numerical solutions of the Navier-Stokes equations showed that even on the underside of a heated plate, the buoyancy of the heated flow significantly affects the overall flow field. Without buoyancy, the Marangoni flow should create a large plume downward from the bubble, but with buoyancy, the plume quickly turns upward as the flow recirculates near the heated surface. Therefore, the buoyancy flow around a vapor bubble on the underside of a heated plate is significant enough that such a system is not an adequate representation of flows around vapor bubbles in microgravity where only Marangoni convection and evaporation/condensation induced flows are significant.
语种	中文 ; 中文
出版者	Tsinghua Univ. Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/25657]
专题	清华大学
推荐引用方式 GB/T 7714	Christopher, D.M.,Peng Nan,Meng Meng,et al. Temperature distributions around stationary vapor bubbles[J],2010, 2010.
APA	Christopher, D.M.,Peng Nan,Meng Meng,&Li Si.(2010).Temperature distributions around stationary vapor bubbles..
MLA	Christopher, D.M.,et al."Temperature distributions around stationary vapor bubbles".(2010).

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