Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Vortex-induced vibrations: a soft coral feeding strategy?   Soft corals, such as the bipinnate sea plume Antillogorgia bipinnata, are
colony building animals that feed by catching food particles brought by
currents. Because of their flexible skeleton, they bend and sway back and forth
with the wave swell. In addition to this low-frequency sway of the whole
colony, branches of A. bipinnata vibrate at high frequency with small amplitude
and transverse to the flow as the wave flow speed peaks. In this paper, we
investigate the origin of these yet unexplained vibrations and consider their
effect on soft corals. Estimation of dynamical variables along with finite
element implementation of the wake-oscillator model favour vortex-induced
vibrations (VIVs) as the most probable origin of the observed rapid dynamics.
To assess the impact of the dynamics on filter feeding, we simulated particles
advected by the flow around a circular cylinder and calculated the capture rate
with an in-house monolithic fluid-structure interaction (FSI) finite element
solver and Python code. We observe that vibrating cylinders can capture up to
40% more particles than fixed ones at frequency lock-in. Therefore, VIVs
plausibly offer soft corals a better food capture.

7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th