Open Access System for Information Sharing

Login Library

 

Article
Cited 63 time in webofscience Cited 57 time in scopus
Metadata Downloads
Full metadata record
Files in This Item:
DC FieldValueLanguage
dc.contributor.authorOh, JM-
dc.contributor.authorKo, SH-
dc.contributor.authorKang, KH-
dc.date.accessioned2015-06-25T03:19:43Z-
dc.date.available2015-06-25T03:19:43Z-
dc.date.created2010-04-29-
dc.date.issued2010-03-
dc.identifier.issn1070-6631-
dc.identifier.other2015-OAK-0000020997en_US
dc.identifier.urihttps://oasis.postech.ac.kr/handle/2014.oak/12550-
dc.description.abstractA set of shape mode equations is derived to describe unsteady motions of a sessile drop actuated by electrowetting. The unsteady, axially symmetric, and linearized flow field is analyzed by expressing the shape of a drop using the Legendre polynomials. A modified boundary condition is obtained by combining the contact angle model and the normal stress condition at the surface. The electrical force is assumed to be concentrated on one point (i.e., three-phase contact line) rather than distributed on the narrow surface of the order of dielectric layer thickness near the contact line. Then, the delta function is used to represent the wetting tension, which includes the capillary force, electrical force, and contact line friction. In previous work [J. M. Oh et al., Langmuir 24, 8379 (2008)], the capillary forces of the air-substrate and liquid-substrate interfaces were neglected, together with the contact-line friction. The delta function is decomposed into a weighted sum of the Legendre polynomials so that each component becomes a forcing term that drives a shape mode of motion. The shape mode equations are nonlinearly coupled between modes due to the contact line friction. The equilibrium contact angle of electrowetting predicted by the present method shows a good agreement with the Lippmann-Young equation and with our experimental results. The present theoretical model is also validated by predicting the spreading of a drop for step input voltages. It shows qualitative agreement with experimental results in temporal evolution of drop shape. c 2010 American Institute of Physics. [doi: 10.1063/1.3360331]-
dc.description.statementofresponsibilityopenen_US
dc.languageEnglish-
dc.publisherAMER INST PHYSICS-
dc.relation.isPartOfPHYSICS OF FLUIDS-
dc.rightsBY_NC_NDen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.0/kren_US
dc.titleAnalysis of electrowetting-driven spreading of a drop in air-
dc.typeArticle-
dc.contributor.college기계공학과en_US
dc.identifier.doi10.1063/1.3360331-
dc.author.googleOh, Jung Minen_US
dc.author.googleKo, Sung Heeen_US
dc.author.googleKang, Kwan Hyoungen_US
dc.relation.volume22en_US
dc.relation.issue3en_US
dc.relation.startpage32002en_US
dc.contributor.id10107580en_US
dc.relation.journalPHYSICS OF FLUIDSen_US
dc.relation.indexSCI급, SCOPUS 등재논문en_US
dc.relation.sciSCIen_US
dc.collections.nameJournal Papersen_US
dc.type.rimsART-
dc.identifier.bibliographicCitationPHYSICS OF FLUIDS, v.22, no.3, pp.32002-
dc.identifier.wosid000276212200008-
dc.date.tcdate2019-01-01-
dc.citation.number3-
dc.citation.startPage32002-
dc.citation.titlePHYSICS OF FLUIDS-
dc.citation.volume22-
dc.contributor.affiliatedAuthorKang, KH-
dc.identifier.scopusid2-s2.0-77953342006-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.wostc42-
dc.description.scptc38*
dc.date.scptcdate2018-10-274*
dc.type.docTypeArticle-
dc.subject.keywordPlusCONTACT-ANGLE-
dc.subject.keywordPlusDYNAMICS-
dc.subject.keywordPlusOSCILLATIONS-
dc.subject.keywordPlusSHAPE-
dc.subject.keywordPlusSURFACE-
dc.subject.keywordPlusFLOWS-
dc.subject.keywordPlusPLATE-
dc.subject.keywordPlusLINE-
dc.relation.journalWebOfScienceCategoryMechanics-
dc.relation.journalWebOfScienceCategoryPhysics, Fluids & Plasmas-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaMechanics-
dc.relation.journalResearchAreaPhysics-

qr_code

  • mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher

강관형KANG, KWAN HYOUNG
Dept of Mechanical Enginrg
Read more

Views & Downloads

Browse