Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hydrodynamics calculations of clusters of drops using the finite volume
  method   In this paper is described a numerical scheme that is used to simulate the
coalescence process between clusters of water drops immersed in a continuous
hydrocarbon phase (n-heptane). Two different values for the initial velocity of
the drops were chosen. Depending of the initial velocity of collision some
scenarios emerge, such as: permanent coalescence, formation of satellite drops
etc. For some snap shots the streamlines are calculated for the different
process of permanent coalescence. These streamlines allow the understanding of
the dynamics of the droplets immersed on the n-heptane phase.

8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin