Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Flow-Induced Helical Coiling of Semiflexible Polymers in Structured
  Microchannels   The conformations of semiflexible (bio)polymers are studied in flow through
geometrically structured microchannels. Using mesoscale hydrodynamics
simulations, we show that the polymer undergoes a rod-to-helix transition as it
moves from the narrow high-velocity region into the wide low-velocity region of
the channel. The transient helix formation is the result of a non-equilibrium
and non-stationary buckling transition of the semiflexible polymer, which is
subjected to a compressive force originating from the fluid-velocity variation
in the channel. The helix properties depend on the diameter ratio of the
channel, the polymer bending rigidity, and the flow strength.

37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin