Numerical simulations of sessile droplet evaporating on heated substrate
文献类型：会议论文
| 作者 | Chen X(陈雪) ; Chen, Paul G.; Ouazzani, Jalil; Liu QS(刘秋生); Chen, PG (reprint author), Aix Marseille Univ, CNRS, Cent Marseille, M2P2, Marseille, France.
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| 出版日期 | 2017 |
| 会议日期 | 2016 |
| 会议地点 | Bad Honnef, GERMANY |
| 关键词 | Microdroplets Surfaces Water |
| 英文摘要 | Motivated by the space project EFILE, a 2D axisymmetric numerical model in the framework of ALE method is developed to investigate the coupled physical mechanism during the evaporation of a pinned drop that partially wets on a heated substrate. The model accounts for mass transport in surrounding air, Marangoni convection inside the drop and heat conduction in the substrate as well as moving interface. Numerical results predict simple scaling laws for the evaporation rate which scales linearly with drop radius but follows a power-law with substrate temperature. It is highlighted that thermal effect of the substrate has a great impact on the temperature profile at the drop surface, which leads to a multicellular thermocapillary flow pattern. In particular, the structure of the multicellular flow behavior induced within a heated drop is mainly controlled by a geometric parameter (aspect ratio). A relationship between the number of thermal cells and the aspect ratio is proposed. |
| 资助机构 | We would like to thank S. Semenov for helpful discussions. This work was financially supported by the National Natural Science Foundation of China (Grants No. 11532015, No. 11302236), by the Strategic Priority Research Program on Space Science, Chinese Academy of Sciences (Grants No. XDA04073000, XDA04020202-02), and by the CNES (Centre National d'Etudes Spatiales). The work was conducted within the framework of a joint Doctoral Training Program (DPP) between Chinese Academy of Sciences (CAS) and Centre National de la Recherche Scientifique (CNRS). Funding from the CAS and support from the CNRS/CNES are gratefully acknowledged. |
| 会议录 | EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS
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| 会议录出版者 | SPRINGER HEIDELBERG |
| 会议录出版地 | HEIDELBERG |
| 语种 | 英语 |
| WOS记录号 | WOS:000400393800017 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/72169]  |
| 专题 | 力学研究所_国家微重力实验室 |
| 通讯作者 | Chen, PG (reprint author), Aix Marseille Univ, CNRS, Cent Marseille, M2P2, Marseille, France. |
| 作者单位 | 1.[Chen, Xue 2.Liu, Qiusheng] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 3.[Chen, Xue 4.Chen, Paul G.] Aix Marseille Univ, CNRS, Cent Marseille, M2P2, Marseille, France 5.[Ouazzani, Jalil] Arcofluid Consulting LLC, 309 N Orange Ave, Orlando, FL 32801 USA |
| 推荐引用方式 GB/T 7714 | Chen X,Chen, Paul G.,Ouazzani, Jalil,et al. Numerical simulations of sessile droplet evaporating on heated substrate[C]. 见:. Bad Honnef, GERMANY. 2016. |
入库方式： OAI收割
来源：力学研究所
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