| Droplet impact behavior on heated micro-patterned surfaces |
| Zhang WB; Yu TX; Fan J(樊菁) ; Sun WJ; Cao ZX; Zhang, WB (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
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| 发表期刊 | JOURNAL OF APPLIED PHYSICS
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| 2016
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| 卷号 | 119期号:11页码:114901 |
| ISSN | 0021-8979
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| 摘要 | Impact behavior of droplets on a surface is an intriguing research topic, and its control should be very useful in diverse industrial applications. We investigated the impact behavior of water droplets on the textured and chemically treated surface of silicon and obtained the impact mode map on the parameter plane subtended by the Weber number (up to 85) and temperature (up to 320 degrees C). The patterns comprise of micropillars (14 mu m in height) in square lattice with a lattice constant of 10 and 20 mu m, and the surface was further made superhydrophobic by coating with graphene nanosheets. Six distinct impact modes are identified. It was found that the impact mode map can be dramatically altered by modifying the texture and chemistry of the surface, and the observations are well explained with regard to heat transfer, vapor/bubble generation and vapor flow beneath the droplet. Instability in the droplet arising from the mismatch between vapor generation rate and exhaust conditions is the dominant factor in determining the impact mode. Our results revealed more facts and features of the droplet impact phenomenon and can be very useful for target-oriented surface design towards precise control of droplet impact behavior on heated substrates. (C) 2016 AIP Publishing LLC. |
| DOI | 10.1063/1.4943938
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| URL | 查看原文
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000373383300031
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| WOS研究方向 | Physics
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| WOS类目 | Physics, Applied
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| 项目资助者 | This work was financially supported by the National Basic Research Program of China Grant No. 2012CB933002, by the Natural Science Foundation of China Grant Nos. 11290161, 51172272, and 11474335, and by the Knowledge Innovation Project of Chinese Academy of Sciences Grant No. KJZD-EW-M03.
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| 课题组名称 | LHD微尺度和非平衡流动
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| 论文分区 | 二类
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| 力学所作者排名 | True
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/59542
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| 专题 | 高温气体动力学国家重点实验室
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| 通讯作者 | Zhang, WB (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
推荐引用方式
GB/T 7714 |
Zhang WB,Yu TX,Fan J,et al. Droplet impact behavior on heated micro-patterned surfaces[J]. JOURNAL OF APPLIED PHYSICS,2016,119,11,:114901.
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| APA |
Zhang WB,Yu TX,樊菁,Sun WJ,Cao ZX,&Zhang, WB .(2016).Droplet impact behavior on heated micro-patterned surfaces.JOURNAL OF APPLIED PHYSICS,119(11),114901.
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| MLA |
Zhang WB,et al."Droplet impact behavior on heated micro-patterned surfaces".JOURNAL OF APPLIED PHYSICS 119.11(2016):114901.
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