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Article: Dynamic regimes of electrified liquid filaments
Title | Dynamic regimes of electrified liquid filaments |
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Authors | |
Keywords | Electrified filaments Electrospinning Instability Viscous flow |
Issue Date | 2018 |
Publisher | National Academy of Sciences. The Journal's web site is located at http://www.pnas.org |
Citation | Proceedings of the National Academy of Sciences, 2018, v. 115 n. 24, p. 6159-6164 How to Cite? |
Abstract | We investigate the dynamics of an electrified liquid filament in a nozzle-to-substrate configuration with a close separation. The interplay between compressive viscous and electrostatic stresses dictates previously undocumented transitions between dynamic regimes of 'jetting,' 'coiling,' and 'whipping.' In particular, the onsets of both coiling and whipping instabilities are significantly influenced by the minimum radius along the liquid filament. Using a low-interfacial-tension system, we unravel the physics behind the transitions between jetting, coiling, and whipping of an electrified filament for a range of liquid properties and geometric parameters. Our results enrich the overall physical picture of the electrically forced jets, and provide insights for the emerging high-resolution instability-assisted printing of materials such as folded assemblies and scaffolds. |
Persistent Identifier | http://hdl.handle.net/10722/260476 |
ISSN | 2023 Impact Factor: 9.4 2023 SCImago Journal Rankings: 3.737 |
PubMed Central ID | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Kong, T | - |
dc.contributor.author | Stone, HA | - |
dc.contributor.author | Wang, L | - |
dc.contributor.author | Shum, HC | - |
dc.date.accessioned | 2018-09-14T08:42:21Z | - |
dc.date.available | 2018-09-14T08:42:21Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Proceedings of the National Academy of Sciences, 2018, v. 115 n. 24, p. 6159-6164 | - |
dc.identifier.issn | 0027-8424 | - |
dc.identifier.uri | http://hdl.handle.net/10722/260476 | - |
dc.description.abstract | We investigate the dynamics of an electrified liquid filament in a nozzle-to-substrate configuration with a close separation. The interplay between compressive viscous and electrostatic stresses dictates previously undocumented transitions between dynamic regimes of 'jetting,' 'coiling,' and 'whipping.' In particular, the onsets of both coiling and whipping instabilities are significantly influenced by the minimum radius along the liquid filament. Using a low-interfacial-tension system, we unravel the physics behind the transitions between jetting, coiling, and whipping of an electrified filament for a range of liquid properties and geometric parameters. Our results enrich the overall physical picture of the electrically forced jets, and provide insights for the emerging high-resolution instability-assisted printing of materials such as folded assemblies and scaffolds. | - |
dc.language | eng | - |
dc.publisher | National Academy of Sciences. The Journal's web site is located at http://www.pnas.org | - |
dc.relation.ispartof | Proceedings of the National Academy of Sciences | - |
dc.rights | Proceedings of the National Academy of Sciences. Copyright © National Academy of Sciences. | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Electrified filaments | - |
dc.subject | Electrospinning | - |
dc.subject | Instability | - |
dc.subject | Viscous flow | - |
dc.title | Dynamic regimes of electrified liquid filaments | - |
dc.type | Article | - |
dc.identifier.email | Wang, L: lqwang@hku.hk | - |
dc.identifier.email | Shum, HC: ashum@hku.hk | - |
dc.identifier.authority | Wang, L=rp00184 | - |
dc.identifier.authority | Shum, HC=rp01439 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1073/pnas.1801053115 | - |
dc.identifier.pmcid | PMC6004468 | - |
dc.identifier.scopus | eid_2-s2.0-85048556651 | - |
dc.identifier.hkuros | 290228 | - |
dc.identifier.volume | 115 | - |
dc.identifier.issue | 24 | - |
dc.identifier.spage | 6159 | - |
dc.identifier.epage | 6164 | - |
dc.identifier.isi | WOS:000434933400039 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 0027-8424 | - |