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Viscous Force Retards Initial Droplet Spreading
Shi, Lichun; Liu, Yang; Lu, Hongyu; Meng, Yonggang; Hu GQ(胡国庆); Tian, Yu; Tian, Y (reprint author), Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China.
2017-10-12
发表期刊JOURNAL OF PHYSICAL CHEMISTRY C
卷号121期号:40页码:22054-22059
ISSN1932-7447
摘要A droplet could spread on a solid substrate within several milliseconds, and be divided into two stages: a fast inertial stage and a subsequent slow viscous stage. The effects of inertia and viscosity on spreading are presented with Ohnesorge number. A small Ohnesorge number corresponds to an initial inertial spreading. In this study, spreading experiments were carried out with a time resolution of 1 mu s. Results disclose that the viscous force could retard droplet spreading at the beginning of liquid/solid surface contact, even with an Ohnesorge number smaller than 0.1. According to simulation results, the viscous retardation could be ascribed to the real high local shear rate along the contact line at the spreading front. These results provide a new insight on droplet spreading dynamics and proposes, where exists a third viscous-inertial stage during the initial droplets spreading process.
DOI10.1021/acs.jpcc.7b06124
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收录类别SCI ; EI
语种英语
WOS记录号WOS:000413131700030
关键词[WOS]DYNAMICS ; SURFACES ; INSTABILITIES ; COALESCENCE ; STATICS ; FILM
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
项目资助者National Natural Science Foundation of China(51425502 ; 51323006)
课题组名称LNM微纳米流体力学
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力学所作者排名2
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文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/70084
专题非线性力学国家重点实验室
通讯作者Tian, Y (reprint author), Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China.
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GB/T 7714
Shi, Lichun,Liu, Yang,Lu, Hongyu,et al. Viscous Force Retards Initial Droplet Spreading[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2017,121(40):22054-22059.
APA Shi, Lichun.,Liu, Yang.,Lu, Hongyu.,Meng, Yonggang.,胡国庆.,...&Tian, Y .(2017).Viscous Force Retards Initial Droplet Spreading.JOURNAL OF PHYSICAL CHEMISTRY C,121(40),22054-22059.
MLA Shi, Lichun,et al."Viscous Force Retards Initial Droplet Spreading".JOURNAL OF PHYSICAL CHEMISTRY C 121.40(2017):22054-22059.
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