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Conference Paper: Dynamics of viscous jet under electric field

TitleDynamics of viscous jet under electric field
Authors
Issue Date2014
PublisherAmerican Physical Society. The Journal's web site is located at http://www.aps.org/meetings/baps/
Citation
The 67th Annual Meeting of the American Physical Society (APS) Division of Fluid Dynamics, San Francisco, CA, 23–25 November 2014. In Bulletin of the American Physical Society, 2014, v. 59 n. 20, Abstract: L1.00002 How to Cite?
AbstractIn this work, we study the folding and unfolding of viscous jets under an electric field. We show that the geometry of the jet responds sensitively to electric field and changes the jet dynamics accordingly. We demonstrate that a stable viscous straight jet can be induced to fold, and the folding morphology can be precisely tuned by varying the electric field. Under a controlled electric field configuration, a folded viscous jet can also be induced to unfold. We further confirm that viscous folding occurs only when a jet is sufficiently compressed and has an aspect ratio above a critical value, often known as the critical slenderness. The precise control of folding morphology is potentially useful for fabrication of nano-scaled features. Moreover, the underlying mechanisms have important implications for applications such as 3-dimensional printing and polymer processing, in which dispensing and manipulating of flowing viscous jets are of great importance.
DescriptionSession L1: General Fluid Dynamics III - abstract id. L1.002
Persistent Identifierhttp://hdl.handle.net/10722/256120
ISSN

 

DC FieldValueLanguage
dc.contributor.authorKong, T-
dc.contributor.authorLiu, Z-
dc.contributor.authorWang, L-
dc.contributor.authorShum, HC-
dc.date.accessioned2018-07-17T09:48:21Z-
dc.date.available2018-07-17T09:48:21Z-
dc.date.issued2014-
dc.identifier.citationThe 67th Annual Meeting of the American Physical Society (APS) Division of Fluid Dynamics, San Francisco, CA, 23–25 November 2014. In Bulletin of the American Physical Society, 2014, v. 59 n. 20, Abstract: L1.00002-
dc.identifier.issn0003-0503-
dc.identifier.urihttp://hdl.handle.net/10722/256120-
dc.descriptionSession L1: General Fluid Dynamics III - abstract id. L1.002-
dc.description.abstractIn this work, we study the folding and unfolding of viscous jets under an electric field. We show that the geometry of the jet responds sensitively to electric field and changes the jet dynamics accordingly. We demonstrate that a stable viscous straight jet can be induced to fold, and the folding morphology can be precisely tuned by varying the electric field. Under a controlled electric field configuration, a folded viscous jet can also be induced to unfold. We further confirm that viscous folding occurs only when a jet is sufficiently compressed and has an aspect ratio above a critical value, often known as the critical slenderness. The precise control of folding morphology is potentially useful for fabrication of nano-scaled features. Moreover, the underlying mechanisms have important implications for applications such as 3-dimensional printing and polymer processing, in which dispensing and manipulating of flowing viscous jets are of great importance.-
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at http://www.aps.org/meetings/baps/-
dc.relation.ispartofAmerican Physical Society Bulletin-
dc.titleDynamics of viscous jet under electric field-
dc.typeConference_Paper-
dc.identifier.emailKong, T: ttkong@hku.hk-
dc.identifier.emailWang, L: lqwang@hku.hk-
dc.identifier.emailShum, HC: ashum@hku.hk-
dc.identifier.authorityWang, L=rp00184-
dc.identifier.authorityShum, HC=rp01439-
dc.identifier.hkuros250803-
dc.identifier.volume59-
dc.identifier.issue20-
dc.publisher.placeUnited States-

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