Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spatio-temporal oscillations and rheochaos in a simple model of shear
  banding   We study a simple model of shear banding in which the flow-induced phase is
destabilised by coupling between flow and microstructure (wormlike micellar
length). By varying the strength of the instability and the applied shear rate,
we find a rich variety of oscillatory and rheochaotic shear banded flows. At
low shear and weak instability, the induced phase pulsates in width next to one
wall of the flow cell. For stronger instability, single or multiple high shear
pulses ricochet across the cell. At high shear rates we observe oscillating
bands on either side of a defect. In some cases, multiple such defects exist
and propagate across the cell to interact with each other. We discuss our
results in the context of recent observations of oscillating and fluctuating
shear banded flows.

32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
2
The categories of this paper are: math