Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A priori tests of a novel LES approach to compressible variable density
  turbulence   We assess the viability of a recently proposed novel approach to LES for
compressible variable density flows by means of a priori tests. The a priori
tests have been carried out filtering a two-dimensional DNS database of the
classic lock-exchange benchmark. The tests confirm that additional terms should
be accounted for in subgrid scale modeling of variable density flows, with
respect to the terms usually considered in the traditional approach. Several
alternatives for the modeling of these terms are assessed and discussed.

2
The categories of this paper are: math
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org