Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The FDF or LES/PDF method for turbulent two-phase flows   In this paper, a new formalism for the filtered density function (FDF)
approach is developed for the treatment of turbulent polydispersed two-phase
flows in LES simulations. Contrary to the FDF used for turbulent reactive
single-phase flows, the present formalislm is based on Lagrangian quantities
and, in particular, on the Lagrangian filtered mass density function (LFMDF) as
the central concept. This framework allows modeling and simulation of particle
flows for LES to be set in a rigorous context and various links with other
approaches to be made. In particular, the relation between LES for particle
simulations of single-phase flows and Smoothed Particle Hydrodynamics (SPH) is
put forward. Then, the discussion and derivation of possible subgrid stochastic
models used for Lagrangian models in two-phase flows can set in a clear
probabilistic equivalence with the corresponding LFMDF.

35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg