Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Front structure and dynamics in dense colonies of motile bacteria: Role
  of active turbulence   We study the spreading of a bacterial colony undergoing turbulent like
collective motion. We present two minimalistic models to investigate the
interplay between population growth and coherent structures arising from
turbulence. Using Direct Numerical Simulation (DNS) of the proposed models we
find that turbulence has two prominent effects on the spatial growth of the
colony: (a) the front speed is enhanced, and (b) the front gets crumpled. Both
these effects, which we highlight by using statistical tools, are markedly
different in our two models. We also show that the crumpled front structure and
the passive scalar fronts in random flows are related in certain regimes.

24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci