Effect of volume ratio on thermocapillary convection in annular liquid pools in space
文献类型：期刊论文
| 作者 | Wang, Jia3; Guo, Ziyi2,3 ; Jing, Chengjun1; Duan, Li2,3; Li, Kai2,3; Hu, Wenrui2,3; Duan L(段俐); Hu WR(胡文瑞); Li K(李凯); Jing CJ
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| 刊名 | INTERNATIONAL JOURNAL OF THERMAL SCIENCES
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 179页码:9 |
| 关键词 | Thermocapillary convection Microgravity Transition Annular pool Numerical analysis |
| ISSN号 | 1290-0729 |
| DOI | 10.1016/j.ijthermalsci.2022.107707 |
| 通讯作者 | Li, Kai(likai@imech.ac.cn) |
| 英文摘要 | 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. |
| WOS关键词 | CZOCHRALSKI MODEL ; HEAT-TRANSFER ; FLOW ; TRANSITION ; INSTABILITIES ; STABILITY ; GRAVITY ; MELT ; PATTERN ; OXIDE |
| 资助项目 | National Natural Science Foundation of China[11972353,12172363] ; National Natural Science Foundation of China[12032020] |
| WOS研究方向 | Thermodynamics ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000833520800001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/89828]  |
| 专题 | 力学研究所_国家微重力实验室 |
| 通讯作者 | Li, Kai |
| 作者单位 | 1.Sichuan Univ, Coll Architecture & Environm, Chengdu 610064, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100149, Peoples R China 3.Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jia,Guo, Ziyi,Jing, Chengjun,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 | Wang, Jia.,Guo, Ziyi.,Jing, Chengjun.,Duan, Li.,Li, Kai.,...&郭子漪.(2022).Effect of volume ratio on thermocapillary convection in annular liquid pools in space.INTERNATIONAL JOURNAL OF THERMAL SCIENCES,179,9. |
| MLA | Wang, Jia,et al."Effect of volume ratio on thermocapillary convection in annular liquid pools in space".INTERNATIONAL JOURNAL OF THERMAL SCIENCES 179(2022):9. |
入库方式： OAI收割
来源：力学研究所
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