Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Helical distributed chaos in rotating turbulence and convection (with
  applications to geomagnetic dynamo)   The role of the moments of helicity distribution in rotating turbulence has
been studied using the notion of helical distributed chaos. Results of the
direct numerical simulations, laboratory experiments and geophysical
observations have been used in this investigation. It is shown, in particular,
that even for the cases when the global helicity is equal to zero at least even
moments are usually non-zero (due to the appearance of the local spatial
regions with strong negative and positive helicity) and can play a significant
role in the rotating turbulence as adiabatic invariants. Rotating buoyancy
driven thermal convection (Rayleigh-B\'{e}nard and Rayleigh-Taylor, the former
also for the magnetohydrodynamics) is also studied, and applications of this
approach to the convection zone of massive stars and to the geomagnetic dynamo
have been discussed in this context.

21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn