Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Rheology of dense suspensions of elastic capsules: normal stresses,
  yield stress, jamming and confinement effects   We study the shearing rheology of dense suspensions of elastic capsules,
taking aggregation-free red blood cells as a physiologically relevant example.
Particles are non-Brownian and interact only via hydrodynamics and short-range
repulsive forces. An analysis of the different stress mechanisms in the
suspension shows that the viscosity is governed by the shear elasticity of the
capsules, whereas the repulsive forces are subdominant. Evidence for a dynamic
yield stress above a critical volume fraction is provided and related to the
elastic properties of the capsules. The shear stress is found to follow a
critical jamming scenario and is rather insensitive to the
tumbling-to-tank-treading transition. The particle pressure and normal stress
differences display some sensitivity to the dynamical state of the cells and
exhibit a characteristic scaling, following the behavior of a single particle,
in the tank-treading regime. The behavior of the viscosity in the fluid phase
is rationalized in terms of effective medium models. Furthermore, the role of
confinement effects, which increase the overall magnitude and enhance the
shear-thinning of the viscosity, is discussed.

14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg