Surface configurations and wave patterns of thermocapillary convection onboard the SJ10 satellite | |
Kang Q(康琦)1,2; Wu D(吴笛)1; Duan L(段俐)1,2; He JW(贺建武)1; Hu L(胡良)1; Duan LS(段隆盛)1,2; Hu WR(胡文瑞)1,2 | |
发表期刊 | PHYSICS OF FLUIDS |
2019-04-01 | |
卷号 | 31期号:4页码:20 |
ISSN | 1070-6631 |
摘要 | A fluid experiment was conducted on China's SJ10 satellite to assess the instability of thermocapillary convection under microgravity. Oscillations of thermocapillary convection in an annular pool were investigated when the difference in temperature exceeded a certain threshold. Dynamics and transitions of the wave pattern were observed using an infrared camera. This work is concerned with the effect of the surface configuration on the wave patterns. There are 3 types of surface configurations that depend on the volume ratio: Vr < 0.77 (zone 1), 0.77 < Vr < 1 (zone 2), and Vr > 1 (zone 3). An irregular local wave occurs at Vr < 0.65, and a regular azimuthal wave occurs at Vr > 0.65. We observed the regular wave with the wavenumber m = 3 in zone 1 and zone 3 and the competition between m = 3 and m = 4 in zone 2. The nonlinear dynamics of traveling waves, standing waves, and counterpropagating waves were studied. The standing wave appears near the onset and transitions to the traveling wave. With a similar mechanism, counterpropagating waves with m = 3 and m = 4 occur in some cases at the onset. Additionally, counterpropagating waves also act as a transitional mode when the traveling wave transitions from m = 4 to m = 3. The traveling wave is very stable, but it develops into standing waves or Benjamin-Feir instability under highly supercritical conditions. Published under license by AIP Publishing. |
DOI | 10.1063/1.5090466 |
URL | 查看原文 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000466701800044 |
关键词[WOS] | OPEN CYLINDRICAL ANNULI ; TENSION-DRIVEN FLOW ; CRUCIBLE ROTATION ; LIQUID BRIDGE ; INSTABILITIES ; NUMBER ; MICROGRAVITY ; CRYSTAL ; ONSET ; SIMULATION |
WOS研究方向 | Mechanics ; Physics |
WOS类目 | Mechanics ; Physics, Fluids & Plasmas |
资助项目 | National Natural Science Foundation of China[XDA04020405] ; National Natural Science Foundation of China[XDA04020202-05] ; [U1738116] |
项目资助者 | National Natural Science Foundation of China |
论文分区 | 一类/力学重要期刊 |
力学所作者排名 | 1 |
RpAuthor | Duan, Li |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/79191 |
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 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Kang Q,Wu D,Duan L,et al. Surface configurations and wave patterns of thermocapillary convection onboard the SJ10 satellite[J]. PHYSICS OF FLUIDS,2019,31,4,:20. |
APA | Kang Q.,Wu D.,Duan L.,He JW.,Hu L.,...&Hu WR.(2019).Surface configurations and wave patterns of thermocapillary convection onboard the SJ10 satellite.PHYSICS OF FLUIDS,31(4),20. |
MLA | Kang Q,et al."Surface configurations and wave patterns of thermocapillary convection onboard the SJ10 satellite".PHYSICS OF FLUIDS 31.4(2019):20. |
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