Evaporation progress of macroscopic-scale droplets on heated substrates | |
Zhu ZQ(朱志强)1,2; Zhao DD(赵栋栋)1,2; Liu QS(刘秋生)1,2; Qin J(秦军)1,2; Tao YQ(陶跃群)1,2; He NF(何乃峰)1,2; Xu YX(徐永香)1,2 | |
2022-07-01 | |
会议日期 | 14/09/2021 - 18/09/2021 |
会议地点 | Perm, Russia |
卷号 | 2317 |
期号 | 1 |
DOI | 10.1088/1742-6596/2317/1/012004 |
页码 | 012004 |
英文摘要 | Abstract Evaporation progress of a macroscopic-scale sessile droplet with the pinned triple line on heated isothermal substrates has been experimentally investigated in the terrestrial gravity, in order to study the interface effect, heat and mass transfer behaviours during the phase change process. The experiments were carried out in a closed chamber in which the environment temperature and pressure were regulated. The contact radius, liquid volume and contact angle during evaporating were observed to study the influence of the gravity effect on the drop shape. The instant evaporation rate was calculated and compared with the theoretical prediction to analyse the coupling influence of diffusion and thermal convection. The effect of substrate temperature on the heat flux were also focused on. It was found that the evolution of heat flux density could be separated into four stages, began with the rapid increase and warm up, then switched to the long-time stable stage and ended up with the final rapid decrease stage. |
会议录 | Journal of Physics: Conference Series |
语种 | 英语 |
ISSN号 | 1742-6588 |
内容类型 | 会议论文 |
源URL | [http://dspace.imech.ac.cn/handle/311007/91977] |
专题 | 力学研究所_国家微重力实验室 |
作者单位 | 1.School of Engineering Science, University of Chinese Academy of Sciences, Beijing, 100049, China 2.National Microgravity Laboratory, Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, China |
推荐引用方式 GB/T 7714 | Zhu ZQ,Zhao DD,Liu QS,et al. Evaporation progress of macroscopic-scale droplets on heated substrates[C]. 见:. Perm, Russia. 14/09/2021 - 18/09/2021. |
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