Gillissen, JJJ;
Wilson, HJ;
(2018)
Taylor Couette instability in disk suspensions.
Physical Review Fluids
, 3
(11)
, Article 113903. 10.1103/PhysRevFluids.3.113903.
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Abstract
We study the stability of dilute suspensions of spheroids in Taylor Couette flow. We focus on axisymmetric perturbations and on the limiting cases of thin disks and long rods. It is found that in the non-Brownian limit, the rods have a negligible effect on the stability, while the disks are destabilizing. The instability is driven by a tilting of the disks, which draws energy from the base flow into azimuthal velocity fluctuations. The resulting instability mode has a wavelength which is smaller than the unstable Newtonian mode. These findings may serve to understand experiments using clay suspensions in the literature.
| Type: | Article |
|---|---|
| Title: | Taylor Couette instability in disk suspensions |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevFluids.3.113903 |
| Publisher version: | https://doi.org/10.1103/PhysRevFluids.3.113903 |
| Language: | English |
| Additional information: | This version is the version of record. 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/10063583 |
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