| Experimental investigation of evaporation dynamic of sessile droplets in pure vapor environment with low pressures | |
Ye S1; Zhang L2 ; Wu CM1; Li YR1; Liu QS(刘秋生)3
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| Corresponding Author | Li, You-Rong([email protected]) |
| Source Publication | INTERNATIONAL JOURNAL OF THERMAL SCIENCES
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| 2020-03-01 | |
| Volume | 149Pages:10 |
| ISSN | 1290-0729 |
| Abstract | In order to understand the evaporation dynamic of sessile droplet in pure vapor environment, this paper presented a series of experimental observations on the evolution of thermal patterns and the variation of evaporation rate during water and ethanol droplet evaporation at low pressures. The contact radius of droplet is fixed at 2.5 mm and the height varies from 0.4 to 1.6 mm. Results show that the surface temperature distributions for both water and ethanol are uniform at a high pressure ratio. When the pressure is reduced, a ring-like thermal pattern appears on the water droplet surface, while the gear-like pattern and the cellular flow happen on the ethanol droplet surface. Interestingly, the gear-like pattern is static when the substrate temperature is low, while it will oscillate at a high substrate temperature. Meanwhile, the cellular flow is affected by the droplet height. The evaporation is promoted by reducing the pressure. Moreover, due to the decrease of the evaporation surface area and the increase of surface temperature, the evaporation rate decreases first and then increases with the decrease of the droplet height. |
| Keyword | Sessile droplet Evaporation Pure vapor Low pressure Experiment |
| DOI | 10.1016/j.ijthermalsci.2019.106213 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000505769100009 |
| WOS Keyword | HYDROTHERMAL WAVES ; THERMAL PATTERNS ; MARANGONI FLOW ; HEAT-TRANSFER ; WATER ; SURFACE ; DROPS ; THERMOGRAPHY |
| WOS Research Area | Thermodynamics ; Engineering |
| WOS Subject | Thermodynamics ; Engineering, Mechanical |
| Funding Project | National Natural Science Foundation of China[11532015] ; National Natural Science Foundation of China[51776022] ; Science and Technology Research Project of Chongqing Education Commission[KJQN201903305] |
| Funding Organization | National Natural Science Foundation of China ; Science and Technology Research Project of Chongqing Education Commission |
| Classification | 一类 |
| Ranking | 5 |
| Contributor | Li, You-Rong |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/81277 |
| Collection | 微重力重点实验室 |
| Affiliation | 1.Chongqing Univ, Coll Power Engn, Key Lab Low Grade Energy Utilizat Technol & Syst, Minist Educ, Chongqing 400044, Peoples R China; 2.Chongqing City Management Coll, Chongqing 401331, Peoples R China; 3.Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Ye S,Zhang L,Wu CM,et al. Experimental investigation of evaporation dynamic of sessile droplets in pure vapor environment with low pressures[J]. INTERNATIONAL JOURNAL OF THERMAL SCIENCES,2020,149:10.Rp_Au:Li, You-Rong |
| APA | Ye S,Zhang L,Wu CM,Li YR,&刘秋生.(2020).Experimental investigation of evaporation dynamic of sessile droplets in pure vapor environment with low pressures.INTERNATIONAL JOURNAL OF THERMAL SCIENCES,149,10. |
| MLA | Ye S,et al."Experimental investigation of evaporation dynamic of sessile droplets in pure vapor environment with low pressures".INTERNATIONAL JOURNAL OF THERMAL SCIENCES 149(2020):10. |
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| File Name/Size | DocType | Version | Access | License | ||
| Jp2020052.pdf（2737KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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