Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Wall entrapment of peritrichous bacteria: A mesoscale hydrodynamics
  simulation study   Microswimmers such as E. Coli bacteria accumulate and exhibit an intriguing
dynamics near walls, governed by hydrodynamic and steric interactions. Insight
into the underlying mechanisms and predominant interactions demand a detailed
characterization of the entrapment process. We employ a mesoscale hydrodynamics
simulation approach to study entrapment of a E. coli-type cell at a no-slip
wall. The cell is modeled by a spherocylindrical body with several explicit
helical flagella. Three stages of the entrapment process can be distinguished:
the approaching regime, where a cell swims toward the wall on a nearly straight
trajectory; a scattering regime, where the cell touches the wall, with an
reorientation; and a surface-swimming regime. Our simulations show that steric
interactions may dominate the entrapment process, yet, hydrodynamic
interactions slow down the adsorption dynamics close to the boundary and imply
a circular motion on the wall. The locomotion of the cell is characterized by a
strong wobbling dynamics, with cells preferentially pointing toward the wall.

29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas