Steady thermocapillary droplet migration under thermal radiation with a uniform flux | |
Gao JH(高家豪)1,2; Wu ZB(武作兵)1,2 | |
发表期刊 | MICROGRAVITY SCIENCE AND TECHNOLOGY |
2021-01-07 | |
卷号 | 33期号:1页码:15 |
ISSN | 0938-0108 |
摘要 | Thermocapillary migration of a droplet under thermal radiation with a uniform flux is numerically investigated and theoretically analyzed. By using the front-tracking method, it is observed that thermocapillary droplet migration at small Reynolds numbers and moderate Marangoni numbers reaches a steady process. The steady migration velocity decreases as Marangoni number increases. The time-evolution behavior of temperature fields in the steady migration process is found to be a quadratic function, in which the linear rise of the steady state temperatures with the relative time is a main characteristics. The quadratic function behavior of the temperature fields is further used to derive the steady energy equations. From the steady momentum and energy equations, an analytical result at small Reynolds number and zero Marangoni number is determined by using the method of matched asymptotic expansions. The steady migration velocity decreases as Reynolds number increases, which is in qualitatively agreement with the numerical result. |
关键词 | Thermocapillary Droplet Thermal radiation Surface tension Steady state |
DOI | 10.1007/s12217-020-09857-1 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000608039800001 |
WOS研究方向 | Engineering ; Thermodynamics ; Mechanics |
WOS类目 | Engineering, Aerospace ; Thermodynamics ; Mechanics |
资助项目 | National Natural Science Foundation of China[11172310] ; National Natural Science Foundation of China[11472284] ; CAS Strategic Priority Research Program[XDB22040403] |
项目资助者 | National Natural Science Foundation of China ; CAS Strategic Priority Research Program |
论文分区 | 二类 |
力学所作者排名 | 1 |
RpAuthor | Wu, Zuo-Bing |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/85949 |
专题 | 非线性力学国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Mech, LNM, 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 | Gao JH,Wu ZB. Steady thermocapillary droplet migration under thermal radiation with a uniform flux[J]. MICROGRAVITY SCIENCE AND TECHNOLOGY,2021,33,1,:15. |
APA | Gao JH,&Wu ZB.(2021).Steady thermocapillary droplet migration under thermal radiation with a uniform flux.MICROGRAVITY SCIENCE AND TECHNOLOGY,33(1),15. |
MLA | Gao JH,et al."Steady thermocapillary droplet migration under thermal radiation with a uniform flux".MICROGRAVITY SCIENCE AND TECHNOLOGY 33.1(2021):15. |
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