A numerical study of three-dimensional droplets spreading on chemically patterned surfaces

Handle URI:
http://hdl.handle.net/10754/621655
Title:
A numerical study of three-dimensional droplets spreading on chemically patterned surfaces
Authors:
Zhong, Hua; Wang, Xiao-Ping; Sun, Shuyu ( 0000-0002-3078-864X )
Abstract:
We study numerically the three-dimensional droplets spreading on physically flat chemically patterned surfaces with periodic squares separated by channels. Our model consists of the Navier-Stokes-Cahn-Hilliard equations with the generalized Navier boundary conditions. Stick-slip behavior and con-tact angle hysteresis are observed. Moreover, we also study the relationship between the effective advancing/receding angle and the two intrinsic angles of the surface patterns. By increasing the volume of droplet gradually, we find that the advancing contact line tends gradually to an equiangular octagon with the length ratio of the two adjacent sides equal to a fixed value that depends on the geometry of the pattern.
KAUST Department:
Computational Transport Phenomena Lab
Citation:
Zhong H, Wang X-P, Sun S (2016) A numerical study of three-dimensional droplets spreading on chemically patterned surfaces. Discrete and Continuous Dynamical Systems - Series B 21: 2905–2926. Available: http://dx.doi.org/10.3934/dcdsb.2016079.
Publisher:
American Institute of Mathematical Sciences (AIMS)
Journal:
Discrete and Continuous Dynamical Systems - Series B
Issue Date:
26-Sep-2016
DOI:
10.3934/dcdsb.2016079
Type:
Article
ISSN:
1531-3492
Appears in Collections:
Articles; Computational Transport Phenomena Lab

Full metadata record

DC FieldValue Language
dc.contributor.authorZhong, Huaen
dc.contributor.authorWang, Xiao-Pingen
dc.contributor.authorSun, Shuyuen
dc.date.accessioned2016-11-03T13:22:00Z-
dc.date.available2016-11-03T13:22:00Z-
dc.date.issued2016-09-26en
dc.identifier.citationZhong H, Wang X-P, Sun S (2016) A numerical study of three-dimensional droplets spreading on chemically patterned surfaces. Discrete and Continuous Dynamical Systems - Series B 21: 2905–2926. Available: http://dx.doi.org/10.3934/dcdsb.2016079.en
dc.identifier.issn1531-3492en
dc.identifier.doi10.3934/dcdsb.2016079en
dc.identifier.urihttp://hdl.handle.net/10754/621655-
dc.description.abstractWe study numerically the three-dimensional droplets spreading on physically flat chemically patterned surfaces with periodic squares separated by channels. Our model consists of the Navier-Stokes-Cahn-Hilliard equations with the generalized Navier boundary conditions. Stick-slip behavior and con-tact angle hysteresis are observed. Moreover, we also study the relationship between the effective advancing/receding angle and the two intrinsic angles of the surface patterns. By increasing the volume of droplet gradually, we find that the advancing contact line tends gradually to an equiangular octagon with the length ratio of the two adjacent sides equal to a fixed value that depends on the geometry of the pattern.en
dc.publisherAmerican Institute of Mathematical Sciences (AIMS)en
dc.subjectAsymptotic behavioren
dc.subjectContact angle hysteresisen
dc.subjectContact lineen
dc.subjectPatterned surfacesen
dc.subjectTwo-phase flow.en
dc.titleA numerical study of three-dimensional droplets spreading on chemically patterned surfacesen
dc.typeArticleen
dc.contributor.departmentComputational Transport Phenomena Laben
dc.identifier.journalDiscrete and Continuous Dynamical Systems - Series Ben
dc.contributor.institutionSchool of Mathematics and Statistics, Guangdong University of Finance and Economics, Chinaen
dc.contributor.institutionDepartment of Mathematics, Hong Kong University of Science and Technology, Hong Kong, Hong Kongen
kaust.authorSun, Shuyuen
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