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Title:
Viscous Force Retards Initial Droplet Spreading
Author: Shi, Lichun; Liu, Yang; Lu, Hongyu; Meng, Yonggang; Hu GQ(胡国庆); Tian, Yu
Source: JOURNAL OF PHYSICAL CHEMISTRY C
Issued Date: 2017-10-12
Volume: 121, Issue:40, Pages:22054-22059
Abstract: 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.
Language: 英语
Indexed Type: SCI ; EI
DOI: 10.1021/acs.jpcc.7b06124
Related URLs: 查看原文
DOC Type: Article
WOS Subject: Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Subject Extended: Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS Keyword Plus: DYNAMICS ; SURFACES ; INSTABILITIES ; COALESCENCE ; STATICS ; FILM
WOS ID: WOS:000413131700030
ISSN: 1932-7447
Funder: National Natural Science Foundation of China(51425502 ; 51323006)
Department: LNM微纳米流体力学
Classification: 一类
Ranking: 2
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/70084
Appears in Collections:非线性力学国家重点实验室_期刊论文

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Recommended Citation:
Shi, Lichun,Liu, Yang,Lu, Hongyu,et al. Viscous Force Retards Initial Droplet Spreading[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2017-10-12,121(40):22054-22059.
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