Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Lattice Boltzmann Equation Method for the Simulation of Compressible
  Fluid Flow   We systematically derived hydrodynamic equations and transport coefficients
for a class of multi-speed lattice Boltzmann models in D dimensions, using the
multi-scale technique. The constitutive relation of physical fluid is recovered
by a modified equilibrium distribution in Maxwell-Boltzmann type. With the use
of the rest particles and the particle reservoir, we were able to add one
degree of freedom into the sound speed of the modeled fluid. When the sound
speed is tuned small enough, the compressible region of fluid flow can be
reached. An example 2-D model is presented, together with the numerical
verification for its transport coefficients.

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The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: cs
2
The categories of this paper are: math
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The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
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The categories of this paper are: plasm-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: cmp-lg
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The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc