Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Collective effects in vortex movements in complex (dusty) plasmas   We study the onset and characteristics of vortices in complex (dusty) plasmas
using two-dimensional simulations in a setup modeled after the PK-3 Plus
laboratory. A small number of microparticles initially self-arranges in a
monolayer around the void. As additional particles are introduced, an extended
system of vortices develops due to a non-zero curl of the plasma forces. We
demonstrate a shear-thinning effect in the vortices. Velocity structure
functions and the energy and enstrophy spectra show that vortex flow turbulence
is present that is in essence of the "classical" Kolmogorov type.

6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
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The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
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The categories of this paper are: nlin
23
The categories of this paper are: solv-int