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- Publisher Website: 10.1103/PhysRevLett.125.104502
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- PMID: 32955312
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Article: Steady and unsteady buckling of viscous capillary jets and liquid bridges
Title | Steady and unsteady buckling of viscous capillary jets and liquid bridges |
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Authors | |
Keywords | Capillary effects Capillary numbers Compressed liquid Fully nonlinear Liquid bridge |
Issue Date | 2020 |
Publisher | American Physical Society. The Journal's web site is located at https://journals.aps.org/prl/ |
Citation | Physical Review Letters, 2020, v. 125 n. 10, p. article no. 104502 How to Cite? |
Abstract | Steady buckling (coiling) of thin falling liquid jets is sensitive to surface tension, yet an understanding of these capillary effects lags far behind what is known about surface-tension-free coiling. In experiments with submillimetric jets and ultralow flow rates, we find that the critical dispensing height Hc for coiling decreases with increasing flow rate, a trend opposite to that found previously for inertia-free coiling. We resolve the apparent contradiction using nonlinear numerical simulations based on slender-jet theory which show that the trend reversal is due to the strong effect of surface tension in our experiments. We use our experiments to construct a regime diagram (coiling vs stagnation flow) in the space of capillary number Ca and jet slenderness ϵ and find that it agrees well with fully nonlinear numerical simulations. However, it differs substantially from the analogous regime diagram determined experimentally by Le Merrer, Quéré, and Clanet [Phys. Rev. Lett. 109, 064502 (2012)PRLTAO0031-900710.1103/PhysRevLett.109.064502] for the unsteady buckling of a compressed liquid bridge. Using linear stability analysis, we show that the differences between the two regime diagrams can be explained by a combination of shape nonuniformity and the influence of gravity. © 2020 American Physical Society. |
Persistent Identifier | http://hdl.handle.net/10722/289365 |
ISSN | 2021 Impact Factor: 9.185 2020 SCImago Journal Rankings: 3.688 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | TIAN, J | - |
dc.contributor.author | Ribe, NM | - |
dc.contributor.author | Wu, X | - |
dc.contributor.author | Shum, HC | - |
dc.date.accessioned | 2020-10-22T08:11:37Z | - |
dc.date.available | 2020-10-22T08:11:37Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Physical Review Letters, 2020, v. 125 n. 10, p. article no. 104502 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/10722/289365 | - |
dc.description.abstract | Steady buckling (coiling) of thin falling liquid jets is sensitive to surface tension, yet an understanding of these capillary effects lags far behind what is known about surface-tension-free coiling. In experiments with submillimetric jets and ultralow flow rates, we find that the critical dispensing height Hc for coiling decreases with increasing flow rate, a trend opposite to that found previously for inertia-free coiling. We resolve the apparent contradiction using nonlinear numerical simulations based on slender-jet theory which show that the trend reversal is due to the strong effect of surface tension in our experiments. We use our experiments to construct a regime diagram (coiling vs stagnation flow) in the space of capillary number Ca and jet slenderness ϵ and find that it agrees well with fully nonlinear numerical simulations. However, it differs substantially from the analogous regime diagram determined experimentally by Le Merrer, Quéré, and Clanet [Phys. Rev. Lett. 109, 064502 (2012)PRLTAO0031-900710.1103/PhysRevLett.109.064502] for the unsteady buckling of a compressed liquid bridge. Using linear stability analysis, we show that the differences between the two regime diagrams can be explained by a combination of shape nonuniformity and the influence of gravity. © 2020 American Physical Society. | - |
dc.language | eng | - |
dc.publisher | American Physical Society. The Journal's web site is located at https://journals.aps.org/prl/ | - |
dc.relation.ispartof | Physical Review Letters | - |
dc.rights | Copyright [2020] by The American Physical Society. This article is available online at [http://dx.doi.org/10.1103/PhysRevLett.125.104502]. | - |
dc.subject | Capillary effects | - |
dc.subject | Capillary numbers | - |
dc.subject | Compressed liquid | - |
dc.subject | Fully nonlinear | - |
dc.subject | Liquid bridge | - |
dc.title | Steady and unsteady buckling of viscous capillary jets and liquid bridges | - |
dc.type | Article | - |
dc.identifier.email | Shum, HC: ashum@hku.hk | - |
dc.identifier.authority | Shum, HC=rp01439 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1103/PhysRevLett.125.104502 | - |
dc.identifier.pmid | 32955312 | - |
dc.identifier.scopus | eid_2-s2.0-85091470190 | - |
dc.identifier.hkuros | 317442 | - |
dc.identifier.volume | 125 | - |
dc.identifier.issue | 10 | - |
dc.identifier.spage | article no. 104502 | - |
dc.identifier.epage | article no. 104502 | - |
dc.identifier.isi | WOS:000565459600010 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 0031-9007 | - |