Cluster formation in active emulsion
Physics of Fluids,
Journal Year:
2025,
Volume and Issue:
37(4)
Published: April 1, 2025
An
active
emulsion
consists
of
self-propelled
droplets
that
are
dispersed
in
another
immiscible
liquid.
Under
certain
conditions,
droplet
clusters
may
form
such
a
system.
This
study
analyzes
the
process
cluster
formation
an
octane-in-water
activated
by
ammonia.
The
movement
is
due
to
emergence
Marangoni
flow
on
surface
droplets.
It
has
been
found
formed
when
average
velocity
less
than
critical
value.
existence
fact
rate
attachment
proportional
their
and
detachment
from
square
velocity.
At
supercritical
velocities,
exceeds
attachment.
depends
density
increases
as
decreases.
Language: Английский
Movement of active droplets in dense emulsion
Physics of Fluids,
Journal Year:
2024,
Volume and Issue:
36(12)
Published: Dec. 1, 2024
The
motion
of
a
single
active
droplet
and
swarm
droplets
in
dense
emulsion
can
differ
significantly,
which
is
due
to
the
interaction
with
each
other.
It
has
been
found
that
decrease
velocity
droplets,
their
becomes
more
spatially
correlated,
size
clusters,
velocities
are
close,
increases.
During
diffusion
motion,
spend
most
time
confined
cages
move
significant
distances
after
cage
rearrangements.
With
an
increase
average
emulsion,
residence
within
decreases
according
law
∼u−2.
In
this
case,
mean
square
displacement
isolated
turns
out
be
proportional
∼t3/2.
deviation
from
Brownian
existence
repulsive
force
between
them.
Language: Английский