IMECH-IR  > 非线性力学国家重点实验室
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.
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
2017-10-12
Volume121Issue:40Pages:22054-22059
ISSN1932-7447
AbstractA 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
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000413131700030
WOS KeywordDYNAMICS ; SURFACES ; INSTABILITIES ; COALESCENCE ; STATICS ; FILM
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China(51425502 ; 51323006)
DepartmentLNM微纳米流体力学
Classification一类
Ranking2
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/70084
Collection非线性力学国家重点实验室
Corresponding AuthorTian, Y (reprint author), Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China.
Recommended Citation
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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