| dc.contributor |
EPSRC - Engineering and Physical Sciences Research Council |
|
| dc.contributor |
Hermes, Michiel |
|
| dc.creator |
Hermes, Michiel |
|
| dc.date |
2016-04-29T11:17:55Z |
|
| dc.date |
2016-04-29T11:17:55Z |
|
| dc.date.accessioned |
2023-02-17T20:52:52Z |
|
| dc.date.available |
2023-02-17T20:52:52Z |
|
| dc.identifier |
Hermes, Michiel. (2016). DATA: Unsteady flow and particle migration in dense, non-Brownian suspensions, [dataset]. University of Edinburgh, School of Physics and Astronomy. https://doi.org/10.7488/ds/1393. |
|
| dc.identifier |
https://hdl.handle.net/10283/1984 |
|
| dc.identifier |
https://doi.org/10.7488/ds/1393 |
|
| dc.identifier.uri |
http://localhost:8080/xmlui/handle/CUHPOERS/244058 |
|
| dc.description |
We present experimental results on dense corn-starch suspensions as examples of non-Brownian, nearly-hard particles that undergo continuous and discontinuous shear thickening (CST and DST) at intermediate and high densities respectively. Our results offer strong support for recent theories involving a stress-dependent effective contact friction among particles. We show however that in the DST regime, where theory might lead one to expect steady-state shear bands oriented layerwise along the vorticity axis, the real flow is unsteady.
To explain this, we argue that steady-state banding is generically ruled out by the requirement that, for hard non-Brownian particles, the solvent pressure and the normal-normal component of the particle stress must balance separately across the interface between bands. (Otherwise there is an unbalanced migration flux.) However, long-lived transient shear bands remain possible.
For further information, see the related pre-print: Hermes et al (2015) "Unsteady flow and particle migration in dense, non-Brownian suspensions" at http://arxiv.org/pdf/1511.08011v1.pdf (N.B. figure numbers in the pre-print are not necessarily the same as those on the filenames in this dataset). |
|
| dc.format |
application/zip |
|
| dc.format |
application/zip |
|
| dc.format |
application/zip |
|
| dc.format |
application/zip |
|
| dc.format |
application/zip |
|
| dc.format |
application/zip |
|
| dc.language |
eng |
|
| dc.publisher |
University of Edinburgh. School of Physics and Astronomy |
|
| dc.relation |
http://arxiv.org/pdf/1511.08011v1.pdf |
|
| dc.relation |
Hermes M (2016) "Unsteady flow and particle migration in dense, non-Brownian suspensions" In Submission. |
|
| dc.rights |
Creative Commons Attribution 4.0 International Public License |
|
| dc.subject |
Rheology |
|
| dc.subject |
Shear thickening |
|
| dc.subject |
Shear banding |
|
| dc.subject |
Unstable flow |
|
| dc.subject |
Physical Sciences |
|
| dc.title |
DATA: Unsteady flow and particle migration in dense, non-Brownian suspensions |
|
| dc.type |
dataset |
|