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2007.217: Vorticity structuring and velocity rolls triggered by gradient shear bands

2007.217: S.M. Fielding (2007) Vorticity structuring and velocity rolls triggered by gradient shear bands. Physical Review E, 76. ISSN 0031-9007

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DOI: 10.1103/PhysRevE.76.016311

Abstract

We suggest a mechanism by which vorticity structuring and velocity rolls can form in complex fluids, triggered by the linear instability of one-dimensional gradient shear banded flow. We support this with a numerical study of the diffusive Johnson-Segalman model. In the steady vorticity structured state, the thickness of the interface between the bands remains finite in the limit of zero stress diffusivity, presenting a possible challenge to the accepted theory of shear banding.

Item Type:Article
Additional Information:

The first version of this article, which appeared online, included a few mistakes in equation numbering that the publisher corrected almost immediately. Their note about the correction is available above and at DOI 10.1103/PhysRevE.76.019904

Uncontrolled Keywords:vortices; shear flow; diffusion; flow instability
Subjects:PACS 2003 > 36 Exotic atoms and molecules; macromolecules; clusters
PACS 2003 > 47 Fluid dynamics
MIMS number:2007.217
Deposited By:Ms Helen Kirkbright
Deposited On:04 December 2007

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