Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Energy distribution in nonaxisymmetric magnetic Taylor-Couette flow   Azimuthal magnetorotational instability is a mechanism that generates
nonaxisymmetric field pattern. Nonlinear simulations in an infinite
Taylor-Couette system with current-free external field show, that not only the
linearly unstable mode m=1 appears, but also an inverse cascade transporting
energy into the axisymmetric field is possible. By varying the Reynolds number
of the flow and the Hartmann number for the magnetic field, we find that the
ratio between axisymmetric (m=0) and dominating nonaxisymmetric mode (m=1) can
be nearly free chosen. On the surface of the outer cylinder this mode
distribution appears similarly, but with weaker axisymmetric fields. We do not
find significant differences in the case that a constant current within the
flow is added.

31
The categories of this paper are: ao-sci
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The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
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The categories of this paper are: cs
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
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The categories of this paper are: quant-ph