Theory of nonlinear rheology and yielding of dense colloidal suspensions
A first-principles approach to the nonlinear flow of dense suspensions is presented which captures shear thinning of colloidal fluids and dynamical yielding of colloidal glasses. The advection of density fluctuations plays a central role, suppressing the caging of particles and speeding up structura...
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| Veröffentlicht in: | Physical review letters 2002-12, Vol.89 (24), p.248304-248304, Article 248304 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | A first-principles approach to the nonlinear flow of dense suspensions is presented which captures shear thinning of colloidal fluids and dynamical yielding of colloidal glasses. The advection of density fluctuations plays a central role, suppressing the caging of particles and speeding up structural relaxation. A mode coupling approach is developed to explore these effects. |
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| ISSN: | 0031-9007 1079-7114 |
| DOI: | 10.1103/physrevlett.89.248304 |