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http://hdl.handle.net/2445/60724
Title: | Transient shear banding in viscoelastic Maxwell fluids |
Author: | Lehtinen, Arttu Puisto, Antti Illa i Tortós, Xavier Mohtaschemi, Mikael Alava, Mikko J. |
Keywords: | Fluids complexos Reologia Mecànica de fluids Viscoelasticitat Complex fluids Rheology Fluid mechanics Viscoelasticity |
Issue Date: | 25-Jun-2013 |
Publisher: | Royal Society of Chemistry |
Abstract: | The fluidization of complex fluids is studied in the context of a Maxwell viscoelastic structural fluid model and compared to the purely viscous case. Solving iteratively the structural models together with the Navier<br>Stokes equation for the circular Couette flow gives spatially and temporally resolved velocity fields closely resembling those found experimentally for viscoelastic carbopol gels. Namely, transient shear banding is found during the initial fluidization phase. Although both structural models show transient shear bands, the viscoelastic one captures the experimental observations in greater detail, showing, for instance, the elastic backward flows during the transient shear band initialization stage. |
Note: | Reproducció del document publicat a: http://dx.doi.org/10.1039/c3sm50988e |
It is part of: | Soft Matter, 2013, vol. 9, p. 8041-8049 |
URI: | http://hdl.handle.net/2445/60724 |
Related resource: | http://dx.doi.org/10.1039/c3sm50988e |
ISSN: | 1744-683X |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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