Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unsaturated wet granular flows over a rough incline: frictional and
  cohesive rheology   Multi-phase flows encountered in nature or in industry, exhibit non trivial
rheological properties, that can be understood better thanks to model materials
and appropriate rheometers. Here, we use model unsaturated granular materials:
assemblies of frictional spherical particles bonded by a small quantity of a
wetting liquid, over a rough inclined plane. Our results show steady uniform
flows for a wide range of parameters (the inclination angle and the mass
flow-rate). A theoretical model, based on the Mohr-Coulomb yield criterion
extended to inertial flows: $\tau$ = $\tau$c + $\mu$(I)P, in which $\tau$c and
$\mu$(I) are the cohesion stress and the internal friction coefficient
respectively, gives predictions in quantitative agreement with experimental
measurements only when one considers that dry and wet samples have
straightforwardly different internal friction commonly described by the
so-called $\mu$(I)-rheology. The liquid bridges bounding grains not only induce
cohesion, but modify the internal friction of the wet assemblies.

22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin