Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Local Measurements in a Particle Laden Jet Generated by a Convergent
  Nozzle   The work show the characterization of a particle laden turbulent jet. For the
velocity and mass flux masurements, a PDA system has been used. Either the
continuous phase (air) or the dispersed phase (glass spheres) are measured;
also, the single phase flow is measure to comparison.

11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an