Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Structural Studies of Decaying Fluid Turbulence: Effect of Initial
  Conditions   We present results from a systematic numerical study of structural properties
of an unforced, incompressible, homogeneous, and isotropic three-dimensional
turbulent fluid with an initial energy spectrum that develops a cascade of
kinetic energy to large wavenumbers. The results are compared with those from a
recently studied set of power-law initial energy spectra [C. Kalelkar and R.
Pandit, Phys. Rev. E, {\bf 69}, 046304 (2004)] which do not exhibit such a
cascade. Differences are exhibited in plots of vorticity isosurfaces, the
temporal evolution of the kinetic energy-dissipation rate, and the rates of
production of the mean enstrophy along the principal axes of the strain-rate
tensor. A crossover between non-`cascade-type' and `cascade-type' behaviour is
shown numerically for a specific set of initial energy spectra.

28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn