Castillo, HA;
Wilson, HJ;
(2017)
Towards a mechanism for instability in channel flow of highly shear-thinning viscoelastic fluids.
Journal of Non-Newtonian Fluid Mechanics
, 247
pp. 15-21.
10.1016/j.jnnfm.2017.06.001.
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Abstract
We consider the linear stability of channel flow of a shear-thinning viscoelastic fluid, replicating a instability recently discovered in experimental and theoretical work. We have extended the fluid model to allow for an inelastic shear-thinning stress component, and find that this additional contribution always has a stabilising influence on the instability. We conclude that, while shear-thinning is critical to the instability, the mechanism is primarily elastic.
| Type: | Article |
|---|---|
| Title: | Towards a mechanism for instability in channel flow of highly shear-thinning viscoelastic fluids |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.jnnfm.2017.06.001 |
| Publisher version: | http://doi.org/10.1016/j.jnnfm.2017.06.001 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Mathematics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1559924 |
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