| Dependency of transition in thermocapillary convection on volume ratio in annular pools of large Pr fluid in microgravity | |
Guo ZY(郭子漪) ; Li JC(李吉成); Li K(李凯); Zhao JF(赵建福); Hu WR(胡文瑞)
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| Source Publication | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
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| 2023-07 | |
| Volume | 208Pages:124059 |
| ISSN | 0017-9310 |
| Abstract | Thermocapillary convection driven by the horizontal temperature gradient is a typical nonlinear dynam ical system. As the applied temperature difference increases, the flow undergoes a series of transitions into turbulence. Volume ratio of the liquid layer Vr (liquid volume/volume of the container) is a critical parameter that affects transition behaviors of the convection. Direct numerical simulations on thermo capillary convection in annular liquid pools with various volume ratios are carried out. Characteristics of the oscillatory convection are detected by time series and frequency spectrum analyses. The dynamic mode decomposition (DMD) method is also adopted to investigate inherent structures of the flow field. Effect of Vr on oscillation characteristics under a wide range of temperature differences from 10K to 90K is discussed. Results show that in annular pools with lager volume ratios, the thermocapillary convection is chaotic under very large AT and its transition behaviors are more complicated.(c) 2023 Elsevier Ltd. All rights reserved. |
| Keyword | Thermocapillary convection Microgravity Annular pool Transitions Dynamic mode decomposition |
| DOI | 10.1016/j.ijheatmasstransfer.2023.124059 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000960079700001 |
| WOS Research Area | Thermodynamics ; Engineering, Mechanical ; Mechanics |
| WOS Subject | Thermodynamics ; Engineering ; Mechanics |
| Funding Organization | National Key R&D Program of China [2022YFF0503500] ; National Natural Sci ence Foundation of China [11972353] |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Li, K (corresponding author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100190, Peoples R China. ; Li, K (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100149, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/91804 |
| Collection | 微重力重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100149, Peoples R China 3.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Peoples R China |
| Recommended Citation GB/T 7714 | Guo ZY,Li JC,Li K,et al. Dependency of transition in thermocapillary convection on volume ratio in annular pools of large Pr fluid in microgravity[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2023,208:124059. |
| APA | 郭子漪,李吉成,李凯,赵建福,&胡文瑞.(2023).Dependency of transition in thermocapillary convection on volume ratio in annular pools of large Pr fluid in microgravity.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,208,124059. |
| MLA | 郭子漪,et al."Dependency of transition in thermocapillary convection on volume ratio in annular pools of large Pr fluid in microgravity".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 208(2023):124059. |
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| Jp2023Fa132.pdf（3307KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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