| Evolution of thermal patterns during steady state evaporation of sessile droplets | |
Ye S; Wu CM; Zhang L; Li YR; Liu QS(刘秋生)
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| Source Publication | EXPERIMENTAL THERMAL AND FLUID SCIENCE
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| 2018-11-01 | |
| Volume | 98Pages:712-718 |
| ISSN | 0894-1777 |
| Abstract | The steady state evaporation process of sessile isopropanol droplets was experimentally investigated by utilizing the infrared thermography. The steady state was achieved by replenishing the droplet from its base. Results indicate that once the evaporation is initiated, the interfacial temperature closed to the triple line is higher than that at the apex, which induces a thermocapillary flow along the interface from the contact line to the apex. With the increase of the evaporation rate, the temperature gradient is enlarged; the flow is enhanced and loses its stability. Then, several thermal patterns, including the forked pattern, the curved hydrothermal waves, the rosebud pattern and the petal-like pattern, were observed. The evolution of thermal pattern is highly correlated with the droplet height and the thermal wave number increases with the substrate temperature. Meanwhile, the global evaporation rate is higher and the surface flow is more intense on copper substrate than that on aluminum substrate. |
| Keyword | Steady state evaporation Sessile droplet Thermocapillary flow Thermal patterns Infrared thermography |
| DOI | 10.1016/j.expthermflusci.2018.07.016 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000441855300062 |
| WOS Keyword | HYDROTHERMAL WAVES ; DROPS ; INSTABILITIES ; SURFACES ; FLOW |
| WOS Research Area | Thermodynamics ; Engineering, Mechanical ; Physics, Fluids & Plasmas |
| WOS Subject | Thermodynamics ; Engineering ; Physics |
| Funding Organization | National Natural Science Foundation of China [11532015] ; Fundamental Research Funds for the Central Universities [2018CDXYDL0001] |
| Classification | 一类 |
| Ranking | 4 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/77934 |
| Collection | 微重力重点实验室 |
| Affiliation | 1.[Ye, Shuang 2.Wu, Chun-Mei 3.Zhang, Li 4.Chongqing Univ, Key Lab Low Grade Energy Utilizat Technol & Syst, Minist Educ, Coll Power Engn, Chongqing 400044, Peoples R China 5.Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Ye S,Wu CM,Zhang L,et al. Evolution of thermal patterns during steady state evaporation of sessile droplets[J]. EXPERIMENTAL THERMAL AND FLUID SCIENCE,2018,98:712-718. |
| APA | Ye S,Wu CM,Zhang L,Li YR,&刘秋生.(2018).Evolution of thermal patterns during steady state evaporation of sessile droplets.EXPERIMENTAL THERMAL AND FLUID SCIENCE,98,712-718. |
| MLA | Ye S,et al."Evolution of thermal patterns during steady state evaporation of sessile droplets".EXPERIMENTAL THERMAL AND FLUID SCIENCE 98(2018):712-718. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| IrJ2018322.pdf（1435KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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