Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Geometric features of the mixing of passive scalars at high Schmidt
  numbers   The mixing of passive scalars of decreasing diffusivity, advected in each
case by the same three-dimensional Navier-Stokes turbulence, is studied. The
mixing becomes more isotropic with decreasing diffusivity. The local flow in
the vicinity of steepest negative and positive scalar gradients are in general
different, and its behavior is studied for various values of the scalar
diffusivity. Mixing approaches monofractal properties with diminishing
diffusivity. We consider these results in the context of possible singularities
of scalar dissipation.

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The categories of this paper are: nucl-th
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The categories of this paper are: eess
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The categories of this paper are: econ
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The categories of this paper are: q-bio
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The categories of this paper are: acc-phys
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The categories of this paper are: stat
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The categories of this paper are: bayes-an
1
The categories of this paper are: cs
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The categories of this paper are: chao-dyn
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The categories of this paper are: atom-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
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The categories of this paper are: hep-th