Computational fluid–structure interaction in biology and soft robots: A review
Physics of Fluids,
Journal Year:
2024,
Volume and Issue:
36(10)
Published: Oct. 1, 2024
The
omnipresence
of
fluid–structure
interaction
(FSI)
in
biological
systems
is
indisputable—from
the
vibration
leaves
to
locomotion
fish,
flying
birds,
and
cardiovascular
biomechanics;
FSI
indeed
ubiquitous.
Even
stimuli-responsive
soft
robots
that
typically
operate
inside
a
fluid
medium,
these
physical
interactions
are
prevalent.
Therefore,
it
becomes
mandatory
have
thorough
understanding
their
fully
coupled
physics
involving
strong
two-way
between
solid
domains.
Although
state-of-the-art
computational
frameworks
robust
numerical
techniques
been
developed
study
complex
mechanisms
associated
nonlinearities
multiple
spatiotemporal
scales,
we
believe
timely
review
current
development,
emerging
techniques,
future
challenges
would
further
stimulate
research
along
this
direction.
explore
broad
landscape
myriad
avenues
herald
emphasizing
manifold
occurrences
biology
advanced
robotic
technologies,
while
underlining
plethora
adopted
fundamental
phenomena.
Language: Английский
Synchronization and metachronal waves of elastic cilia caused by unsteady viscous flow
Physical Review Research,
Journal Year:
2025,
Volume and Issue:
7(1)
Published: Feb. 6, 2025
Hydrodynamic
coordination
of
cilia
is
ubiquitous
in
biology.
It
commonly
modeled
using
the
steady
Stokes
equations.
The
flow
around
ciliated
cells,
however,
exhibits
finite-time
vorticity
diffusion,
requiring
a
dynamical
description.
We
present
model
elastic
coupled
by
unsteady
viscous
bulk
fluid.
Therein,
diffusion
impacts
qualitatively
and
quantitatively.
In
particular,
pairs
synchronize
antiphase
for
long
times.
Moreover,
metachronal
waves
occur
chains
larger
than
penetration
depth,
whereas
global
synchronization
occurs
flow.
Published
American
Physical
Society
2025
Language: Английский
Cilia beating misalignment, immotility or death pathologically affect the efficiency of mucus-clearance
Communications Physics,
Journal Year:
2025,
Volume and Issue:
8(1)
Published: March 19, 2025
Language: Английский
Near-field hydrodynamic interactions determine travelling wave directions of collectively beating cilia
Journal of The Royal Society Interface,
Journal Year:
2024,
Volume and Issue:
21(217)
Published: Aug. 1, 2024
Cilia
can
beat
collectively
in
the
form
of
a
metachronal
wave,
and
we
investigate
how
near-field
hydrodynamic
interactions
between
cilia
influence
collective
response
beating
cilia.
Based
on
theoretical
framework
developed
work
Meng
et
al
.
(Meng
2021
Proc.
Natl
Acad.
Sci.
USA
118
,
e2102828118),
find
that
first
harmonic
mode
driving
force
acting
each
individual
cilium
determine
direction
wave
after
considering
finite
size
trajectories,
which
is
confirmed
by
our
agent-based
numerical
simulations.
The
stable
patterns,
e.g.
travelling
direction,
be
controlled
forces
cilia,
based
one
change
flow
field
generated
This
not
only
help
to
understand
role
behaviours
but
also
guide
future
designs
artificial
desired
dynamic
mode.
Language: Английский
Synchronization and metachronal waves of elastic cilia caused by transient viscous flow
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 17, 2024
Hydrodynamic
coordination
of
cilia
is
ubiquitous
in
biology.
It
commonly
modeled
using
the
steady
Stokes
equations.
The
flow
around
ciliated
cells,
however,
exhibits
finite
time
vorticity
diffusion,
requiring
a
dynamical
description.
We
present
model
elastic
coupled
by
transient
viscous
bulk
fluid.
Therein,
diffusion
impacts
qualitatively
and
quantitatively.
In
particular,
pairs
synchronize
antiphase
for
long
times.
Moreover,
metachronal
waves
occur
chains
larger
than
penetration
depth,
whereas
global
synchronization
occurs
flow.
Language: Английский
Swimming ability and flagellar motility of sperm packets of the volvocine green alga Pleodorina starrii
PLoS ONE,
Journal Year:
2024,
Volume and Issue:
19(7), P. e0287561 - e0287561
Published: July 18, 2024
Eukaryotic
flagella
collectively
form
metachronal
waves
that
facilitate
the
ability
to
cause
flow
or
swim.
Among
such
flagellated
and
planktonic
swimmers,
large
volvocine
genera
as
Eudorina
,
Pleodorina
Volvox
bundles
of
small
male
gametes
(sperm)
called
“sperm
packets”
for
sexual
reproduction.
Although
these
sperm
packets
reportedly
have
swim,
previous
studies
on
motility
focused
asexual
forms
swimming
characteristics
remain
unknown.
However,
it
is
important
quantify
in
order
gain
insights
into
significance
reproduction
algae.
In
this
study,
we
quantitatively
described
behavior
three
a
strain
starrii
—asexual
colonies,
packets,
single
dissociated
sperm—with
emphasis
comparison
two
multicellular
forms.
Despite
being
smaller,
swam
approximately
1.4
times
faster
than
colonies
same
strain.
Body
length
was
0.5
smaller
colonies.
The
from
showed
asymmetric
waveforms,
whereas
those
symmetric
suggesting
presence
switching
mechanism
between
sperm.
Flagella
were
shorter
had
beat
period
twice
long
densely
distributed
over
anterior
part
body,
sparse
evenly
distributed.
distribution
flagella,
but
not
number
appear
illustrate
significant
difference
speeds
Our
findings
reveal
novel
aspects
regulation
eukaryotic
shed
light
role
flagellar
Language: Английский