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...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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American Physical Society (APS)
2020
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| Online Access: | https://hdl.handle.net/1721.1/128786 |
| _version_ | 1826198982300270592 |
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| author | Zimoch, Pawel Jerzy McKinley, Gareth H Hosoi, Anette E. |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Zimoch, Pawel Jerzy McKinley, Gareth H Hosoi, Anette E. |
| 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. ©2013 American Physical Society. |
| first_indexed | 2024-09-23T11:12:54Z |
| format | Article |
| id | mit-1721.1/128786 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:12:54Z |
| publishDate | 2020 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1287862022-09-27T17:55:29Z Capillary Breakup of Discontinuously Rate Thickening Suspensions Zimoch, Pawel Jerzy McKinley, Gareth H Hosoi, Anette E. Massachusetts Institute of Technology. Department of Mechanical Engineering Massachusetts Institute of Technology. Hatsopoulos Microfluids Laboratory 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. ©2013 American Physical Society. U. S. Army Research Office (W911NF1210290) 2020-12-10T22:35:35Z 2020-12-10T22:35:35Z 2013-07 2012-11 2020-07-21T16:24:08Z Article http://purl.org/eprint/type/JournalArticle 1079-7114 https://hdl.handle.net/1721.1/128786 Zimoch, Pawel J. et al., "Capillary Breakup of Discontinuously Rate Thickening Suspensions." Physical Review Letters 111, 3 (July 2013): 036001 doi. 10.1103/PhysRevLett.111.036001 ©2013 Authors en https://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) APS |
| spellingShingle | Zimoch, Pawel Jerzy McKinley, Gareth H Hosoi, Anette E. Capillary Breakup of Discontinuously Rate Thickening Suspensions |
| title | Capillary Breakup of Discontinuously Rate Thickening Suspensions |
| title_full | Capillary Breakup of Discontinuously Rate Thickening Suspensions |
| title_fullStr | Capillary Breakup of Discontinuously Rate Thickening Suspensions |
| title_full_unstemmed | Capillary Breakup of Discontinuously Rate Thickening Suspensions |
| title_short | Capillary Breakup of Discontinuously Rate Thickening Suspensions |
| title_sort | capillary breakup of discontinuously rate thickening suspensions |
| url | https://hdl.handle.net/1721.1/128786 |
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