Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ring bursting behavior en route to turbulence in quasi two-dimensional
  Taylor-Couette flows   We investigate the quasi two-dimensional Taylor-Couette system in the regime
where the radius ratio is close to unity - a transitional regime between three
and two dimensions. By systematically increasing the Reynolds number we observe
a number of standard transitions, such as one from the classical Taylor vortex
flow (TVF) to wavy vortex flow (WVF), as well as the transition to fully
developed turbulence. Prior to the onset of turbulence we observe intermittent
burst patterns of localized turbulent patches, confirming the experimentally
observed pattern of very short wavelength bursts (VSWBs). A striking finding is
that, for Reynolds number larger than the onset of VSWBs, a new type of
intermittently bursting behaviors emerge: burst patterns of azimuthally closed
rings of various orders. We call them ring-burst patterns, which surround the
cylinder completely but remain localized and separated by non-turbulent mostly
wavy structures in the axial direction. We use a number of quantitative
measures, including the cross-flow energy, to characterize the ring-burst
patterns and to distinguish them from the background flow. The ring-burst
patterns are interesting because it does not occur in either three- or
two-dimensional Taylor-Couette flow: it occurs only in the transition, quasi
two-dimensional regime of the system, a regime that is less studied but
certainly deserves further attention so as to obtain deeper insights into
turbulence.

34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess