| Thermodynamic Behaviors of Macroscopic Liquid Droplets Evaporation from Heated Substrates | |
Chen X ; Zhu ZQ(朱志强); Liu QS(刘秋生); Wang XW; Liu, QS (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Key Lab Micrograv, Beijing 100190, Peoples R China.
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| Source Publication | MICROGRAVITY SCIENCE AND TECHNOLOGY
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| 2015-09 | |
| Volume | 27Issue:5Pages:353-360 |
| ISSN | 0938-0108 |
| Abstract | Evaporation of a macroscopic-scale sessile droplet on different hot isothermal substrates has been experimentally investigated, for the framework of planning space experiments onboard Chinese recoverable satellite to explore the interface effect, heat and mass transfer during the phase transition process. Undoubtedly, the evaporation phenomenon of a sessile drop on heated substrates is a complex problem which involves the behavior of triple line, heat transfer with thermal conduction and convection, mass transfer into the vapor phase. Therefore, preparations from scientific view have been carried out to validate setup of the space experiment modes. Based on the experiments performed in the terrestrial gravity, we found that the evolution of a water droplet could be separated into three stages, began with the constant contact area, then switched to the depin stage and ended up with the flushing stage. The average evaporation rate was measured and the thermal effects of different substrates were studied. Results revealed a linear variation of contact diameter with its average evaporation rate, which has the similar tendency with small drops. The varieties of the heat flux density during evaporating showed that droplet absorbed energy from the heated substrate, then with the help of the internal flow of thermocaplliry and buoyant convection, heat was transported to the liquid-vapor interface providing the energy for evaporation. |
| Keyword | Sessile Drop Evaporation Thermocaplliry Convection Buoyant Convection Heat And Mass Transfer |
| DOI | 10.1007/s12217-015-9426-0 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000366103200006 |
| WOS Keyword | SESSILE DROPLET ; CONTACT LINE |
| WOS Research Area | Engineering ; Thermodynamics ; Mechanics |
| WOS Subject | Engineering, Aerospace ; Thermodynamics ; Mechanics |
| Funding Organization | This research was financially supported by the National Natural Science Foundation of China (Grants No. 11302236) and the Strategic Priority Research Program on Space Science, Chinese Academy of Sciences (Grants No.XDA 04073000, XDA 04020202-02), and China Manned Space Program (TZ-1). |
| Department | NML流动稳定性与复杂流动 |
| Classification | 二类/Q2 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/58365 |
| Collection | 微重力重点实验室 |
| Corresponding Author | Liu, QS (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Key Lab Micrograv, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Chen X,Zhu ZQ,Liu QS,et al. Thermodynamic Behaviors of Macroscopic Liquid Droplets Evaporation from Heated Substrates[J]. MICROGRAVITY SCIENCE AND TECHNOLOGY,2015,27,5,:353-360. |
| APA | Chen X,朱志强,刘秋生,Wang XW,&Liu, QS .(2015).Thermodynamic Behaviors of Macroscopic Liquid Droplets Evaporation from Heated Substrates.MICROGRAVITY SCIENCE AND TECHNOLOGY,27(5),353-360. |
| MLA | Chen X,et al."Thermodynamic Behaviors of Macroscopic Liquid Droplets Evaporation from Heated Substrates".MICROGRAVITY SCIENCE AND TECHNOLOGY 27.5(2015):353-360. |
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| File Name/Size | DocType | Version | Access | License | ||
| J2015-016.pdf（942KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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