Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Molecular-Dynamics Simulation of Vulcanian Eruption   Vulcanian explosive eruption, which is a nonlinear and nonequilibrium abrupt
dynamics of magma-gas mixture, is modeled by a two-component Lennard-Jones
particle system. Molecular-dynamics simulation of a shock-tube experiment gives
consistent results with a explosive eruption picture of volcanology; Shock wave
and expansion wave are reproduced. In addition bubble nucleation of a gas
component in the magma melt and spinodal-like decomposition are observed in the
simulation. The result is also compared with a continuum hydrodynamic model;
Qualitative features of continuum dynamics are reproduced by the present model.
We find that the particle description of dynamics is an effective method in
such kind of abrupt dynamics.

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The categories of this paper are: comp-gas
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The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
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The categories of this paper are: eess
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
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The categories of this paper are: bayes-an
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The categories of this paper are: q-alg
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The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph