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Abstract / Description of output
We model a shear-thickening fluid that combines a tendency to form inhomogeneous, shear-banded flows with a slow relaxational dynamics for fluid microstructure. The interplay between these factors gives rich dynamics, with periodic regimes ( oscillating bands, travelling bands, and more complex oscillations) and spatiotemporal rheochaos. These phenomena, arising from constitutive nonlinearity not inertia, can occur even when the steady-state flow curve is monotonic. Our model also shows rheochaos in a low-dimensional truncation where sharply defined shear bands cannot form.
Original language | English |
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Pages (from-to) | 397-403 |
Number of pages | 7 |
Journal | European Physical Society Letters (EPL) |
Volume | 70 |
Issue number | 3 |
DOIs | |
Publication status | Published - May 2005 |
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Dive into the research topics of 'Instability and spatiotemporal rheochaos in a shear-thickening fluid model'. Together they form a unique fingerprint.Projects
- 1 Finished
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Edinburgh Soft Matter and Statistical Physics Group: Programme Grant
Cates, M., Ackland, G., Egelhaaf, S., Evans, M., Poon, W. & Pusey, P.
1/10/03 → 31/03/08
Project: Research