Effect of volume ratio on thermocapillary convection in annular liquid pools in space

doi:10.1016/j.ijthermalsci.2022.107707

IMECH-IR > 微重力重点实验室

	Effect of volume ratio on thermocapillary convection in annular liquid pools in space
	Wang J(王佳)1; Guo ZY(郭子漪)1,2 ; Jing CJ3 ; Duan L(段俐)1,2 ; Li K(李凯)1,2 ; Hu WR(胡文瑞)1,2
通讯作者	Li, Kai(likai@imech.ac.cn)
发表期刊	INTERNATIONAL JOURNAL OF THERMAL SCIENCES
	2022-09-01
卷号	179 页码:9
ISSN	1290-0729
摘要	In systems with liquid/liquid or liquid/gas interface under microgravity, and even in shallow liquid layers in the terrestrial conditions, thermocapillary force takes the principal role to drive natural convections. A series of numerical simulations are conducted to investigate the stability limit of axisymmetric steady thermocapillary flow in annular liquid pools with curved and adiabatic liquid surface for eight volume ratios 0.809 <= Vr <= 1.173, where Vr is defined as (liquid vol/vol of the annular gap). Simulations provide the critical temperature difference Delta T-c, frequency f(c), and azimuthal wave number mc for each liquid pool. At the critical condition, oscillations start in form of standing wave. At the slightly supercritical condition (Delta T*), the standing waves turn to traveling oscillations. The calculated Delta T-c values decrease with the increase of Vr. A simulation code with a convective thermal boundary condition in the liquid surface suggests that heat transfer through the liquid surface significantly increases the Delta T-c value.
关键词	Thermocapillary convection Microgravity Transition Annular pool Numerical analysis
DOI	10.1016/j.ijthermalsci.2022.107707
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000833520800001
关键词[WOS]	CZOCHRALSKI MODEL ; HEAT-TRANSFER ; FLOW ; TRANSITION ; INSTABILITIES ; STABILITY ; GRAVITY ; MELT ; PATTERN ; OXIDE
WOS研究方向	Thermodynamics ; Engineering
WOS类目	Thermodynamics ; Engineering, Mechanical
资助项目	National Natural Science Foundation of China[11972353,12172363] ; National Natural Science Foundation of China[12032020]
项目资助者	National Natural Science Foundation of China
论文分区	二类/Q1
力学所作者排名	1
RpAuthor	Li, Kai
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/89829
专题	微重力重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100149, Peoples R China; 3.Sichuan Univ, Coll Architecture & Environm, Chengdu 610064, Peoples R China
推荐引用方式 GB/T 7714	Wang J,Guo ZY,Jing CJ,et al. Effect of volume ratio on thermocapillary convection in annular liquid pools in space[J]. INTERNATIONAL JOURNAL OF THERMAL SCIENCES,2022,179:9.
APA	王佳,郭子漪,Jing CJ,段俐,李凯,&胡文瑞.(2022).Effect of volume ratio on thermocapillary convection in annular liquid pools in space.INTERNATIONAL JOURNAL OF THERMAL SCIENCES,179,9.
MLA	王佳,et al."Effect of volume ratio on thermocapillary convection in annular liquid pools in space".INTERNATIONAL JOURNAL OF THERMAL SCIENCES 179(2022):9.

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