[MRO] Capillary Breakup of Discontinuously Rate Thickening Suspensions
Using discontinuously rate thickening suspensions (DRTS) as a model system, we show that beads-on-a-string morphologies can arise as a result of external viscous drag acting during capillary-driven breakup of a non-Newtonian fluid. To minimize the perturbative effect of gravity, we developed a new e...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2013
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| Online Access: | http://hdl.handle.net/1721.1/79902 https://orcid.org/0000-0003-4940-7496 https://orcid.org/0000-0001-7000-4064 https://orcid.org/0000-0001-8323-2779 |
| _version_ | 1826216847905652736 |
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| author | Zimoch, Pawel Jerzy Hosoi, Anette E. McKinley, Gareth H |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Zimoch, Pawel Jerzy Hosoi, Anette E. McKinley, Gareth H |
| author_sort | Zimoch, Pawel Jerzy |
| collection | MIT |
| description | Using discontinuously rate thickening suspensions (DRTS) as a model system, we show that beads-on-a-string morphologies can arise as a result of external viscous drag acting during capillary-driven breakup of a non-Newtonian fluid. To minimize the perturbative effect of gravity, we developed a new experimental test platform in which the filament is supported in a horizontal position at the surface of an immiscible oil bath. We show that the evolution of thin DRTS filaments during the capillary thinning process is well described by a set of one-dimensional slender filament equations. The strongly rate-dependent rheology of the test fluid and the aspect ratio of the filament couple to control the thinning dynamics and lead to a simple criterion describing the localized arrest of the capillary thinning process and the subsequent formation of complex, high aspect ratio beads-on-a-string structures. |
| first_indexed | 2024-09-23T16:54:23Z |
| format | Article |
| id | mit-1721.1/79902 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:54:23Z |
| publishDate | 2013 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/799022022-09-29T22:18:30Z [MRO] Capillary Breakup of Discontinuously Rate Thickening Suspensions Zimoch, Pawel Jerzy Hosoi, Anette E. McKinley, Gareth H Massachusetts Institute of Technology. Department of Mechanical Engineering Massachusetts Institute of Technology. Hatsopoulos Microfluids Laboratory Zimoch, Pawel Jerzy McKinley, Gareth H. Hosoi, Anette E. Using discontinuously rate thickening suspensions (DRTS) as a model system, we show that beads-on-a-string morphologies can arise as a result of external viscous drag acting during capillary-driven breakup of a non-Newtonian fluid. To minimize the perturbative effect of gravity, we developed a new experimental test platform in which the filament is supported in a horizontal position at the surface of an immiscible oil bath. We show that the evolution of thin DRTS filaments during the capillary thinning process is well described by a set of one-dimensional slender filament equations. The strongly rate-dependent rheology of the test fluid and the aspect ratio of the filament couple to control the thinning dynamics and lead to a simple criterion describing the localized arrest of the capillary thinning process and the subsequent formation of complex, high aspect ratio beads-on-a-string structures. United States. Army Research Office (Grant W911NF1210290) 2013-08-21T18:48:55Z 2013-08-21T18:48:55Z 2013-07 2012-11 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/79902 Zimoch, Pawel J., Gareth H. McKinley, and A. E. Hosoi. “Capillary Breakup of Discontinuously Rate Thickening Suspensions.” Physical Review Letters 111, no. 3 (July 2013). © 2013 American Physical Society https://orcid.org/0000-0003-4940-7496 https://orcid.org/0000-0001-7000-4064 https://orcid.org/0000-0001-8323-2779 en_US http://dx.doi.org/10.1103/PhysRevLett.111.036001 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Zimoch, Pawel Jerzy Hosoi, Anette E. McKinley, Gareth H [MRO] Capillary Breakup of Discontinuously Rate Thickening Suspensions |
| title | [MRO] Capillary Breakup of Discontinuously Rate Thickening Suspensions |
| title_full | [MRO] Capillary Breakup of Discontinuously Rate Thickening Suspensions |
| title_fullStr | [MRO] Capillary Breakup of Discontinuously Rate Thickening Suspensions |
| title_full_unstemmed | [MRO] Capillary Breakup of Discontinuously Rate Thickening Suspensions |
| title_short | [MRO] Capillary Breakup of Discontinuously Rate Thickening Suspensions |
| title_sort | mro capillary breakup of discontinuously rate thickening suspensions |
| url | http://hdl.handle.net/1721.1/79902 https://orcid.org/0000-0003-4940-7496 https://orcid.org/0000-0001-7000-4064 https://orcid.org/0000-0001-8323-2779 |
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