| 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
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| Corresponding Author | Li, Kai(likai@imech.ac.cn) |
| Source Publication | INTERNATIONAL JOURNAL OF THERMAL SCIENCES
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| 2022-09-01 | |
| Volume | 179Pages:9 |
| ISSN | 1290-0729 |
| Abstract | 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. |
| Keyword | Thermocapillary convection Microgravity Transition Annular pool Numerical analysis |
| DOI | 10.1016/j.ijthermalsci.2022.107707 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000833520800001 |
| WOS Keyword | CZOCHRALSKI MODEL ; HEAT-TRANSFER ; FLOW ; TRANSITION ; INSTABILITIES ; STABILITY ; GRAVITY ; MELT ; PATTERN ; OXIDE |
| WOS Research Area | Thermodynamics ; Engineering |
| WOS Subject | Thermodynamics ; Engineering, Mechanical |
| Funding Project | National Natural Science Foundation of China[11972353,12172363] ; National Natural Science Foundation of China[12032020] |
| Funding Organization | National Natural Science Foundation of China |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Li, Kai |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/89829 |
| Collection | 微重力重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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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| Jp2022FA169_2022_Eff（7747KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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