Shearing active gels close to the isotropic-nematic transition.
We study numerically the rheological properties of a slab of active gel close to the isotropic-nematic transition. The flow behavior shows a strong dependence on the sample size, boundary conditions, and on the bulk constitutive curve, which, on entering the nematic phase, acquires an activity-induc...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2008
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| _version_ | 1826274715145076736 |
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| author | Cates, M Fielding, S Marenduzzo, D Orlandini, E Yeomans, J |
| author_facet | Cates, M Fielding, S Marenduzzo, D Orlandini, E Yeomans, J |
| author_sort | Cates, M |
| collection | OXFORD |
| description | We study numerically the rheological properties of a slab of active gel close to the isotropic-nematic transition. The flow behavior shows a strong dependence on the sample size, boundary conditions, and on the bulk constitutive curve, which, on entering the nematic phase, acquires an activity-induced discontinuity at the origin. The precursor of this within the metastable isotropic phase for contractile systems (e.g., actomyosin gels) gives a viscosity divergence; its counterpart for extensile suspensions admits instead a shear-banded flow with zero apparent viscosity. |
| first_indexed | 2024-03-06T22:47:40Z |
| format | Journal article |
| id | oxford-uuid:5dbc79ad-3622-42e1-8385-5daf28561c84 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:47:40Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | oxford-uuid:5dbc79ad-3622-42e1-8385-5daf28561c842022-03-26T17:36:11ZShearing active gels close to the isotropic-nematic transition.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5dbc79ad-3622-42e1-8385-5daf28561c84EnglishSymplectic Elements at Oxford2008Cates, MFielding, SMarenduzzo, DOrlandini, EYeomans, JWe study numerically the rheological properties of a slab of active gel close to the isotropic-nematic transition. The flow behavior shows a strong dependence on the sample size, boundary conditions, and on the bulk constitutive curve, which, on entering the nematic phase, acquires an activity-induced discontinuity at the origin. The precursor of this within the metastable isotropic phase for contractile systems (e.g., actomyosin gels) gives a viscosity divergence; its counterpart for extensile suspensions admits instead a shear-banded flow with zero apparent viscosity. |
| spellingShingle | Cates, M Fielding, S Marenduzzo, D Orlandini, E Yeomans, J Shearing active gels close to the isotropic-nematic transition. |
| title | Shearing active gels close to the isotropic-nematic transition. |
| title_full | Shearing active gels close to the isotropic-nematic transition. |
| title_fullStr | Shearing active gels close to the isotropic-nematic transition. |
| title_full_unstemmed | Shearing active gels close to the isotropic-nematic transition. |
| title_short | Shearing active gels close to the isotropic-nematic transition. |
| title_sort | shearing active gels close to the isotropic nematic transition |
| work_keys_str_mv | AT catesm shearingactivegelsclosetotheisotropicnematictransition AT fieldings shearingactivegelsclosetotheisotropicnematictransition AT marenduzzod shearingactivegelsclosetotheisotropicnematictransition AT orlandinie shearingactivegelsclosetotheisotropicnematictransition AT yeomansj shearingactivegelsclosetotheisotropicnematictransition |