Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modeling viscous compressible barotropic multi-fluid flows   We study the system of equations which describes barotropic (isentropic)
flows of viscous compressible multi-fluids (mixtures of fluids). We study the
relations between pressure, densities, concentrations, viscosities and other
parameters of the flow and of the medium.

24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex