Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lattice gas automaton modelling of a vortex flow meter:
  Strouhal-Reynolds number dependence   Motivated by recent experimental and computational results concerning the
three-dimensional structure of vortices behind a vortex shedding flow meter [M.
Reik et al., Forsch. Ingenieurwes. 74, 77 (2010)], we study the
Strouhal-Reynolds number dependence in the vortex street in two dimensions
behind a trapezoid-shaped object by employing two types of
Frisch-Hasslacher-Pomeau (FHP) models. Our geometry is intended to reproduce
the operation of the vortex shedding flow meter in a two-dimensional setting,
thus preventing the formation of three-dimensional vortex structure. In
particular, we check if the anomalous Reynolds-Strouhal number dependence
reported for three dimensions can also be found in our two-dimensional
simulation. As we find that the Strouhal number is nearly independent of the
Reynolds number in this particular setup, our results provide support for the
hypothesis that three-dimensional flow structures are responsible for that
dependence, thus hinting at the importance of the pipe diameter to the accurate
operation of industrial vortex flow meters.

18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
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The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
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The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
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The categories of this paper are: patt-sol
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The categories of this paper are: q-fin