Effect of angle optimization on particle inertial focusing with asymmetrically curved channels
Physics of Fluids,
Год журнала:
2025,
Номер
37(2)
Опубликована: Фев. 1, 2025
This
study
examines
the
impact
of
angle
optimization
on
particle
inertial
focusing
within
a
fluid
flow
system
through
numerical
simulations.
The
investigation
employs
asymmetrically
curved
channels
characterized
by
circular
walls
and
angled
straight
walls.
Various
radii
curvature
for
arc
different
angles
are
selected
to
achieve
optimized
channel
designs
analyze
trajectories
in
both
power-law
Newtonian
fluids.
takes
into
account
several
parameters,
including
width
at
baffle
(dw),
index
(n),
Reynolds
number
(Re),
radius
(R)
wall.
findings
indicate
that
an
increase
dw
results
shift
from
single-sided
double-sided
channel.
Furthermore,
this
transition
between
two
states
can
be
facilitated
increasing
number,
which
leads
double-point
equilibrium
position
single-point
position.
In
case
shear-thinning
fluids,
becomes
unstable,
resulting
completely
unfocused
state
as
increases.
contrast,
shear-thickening
fluids
exhibit
stable
positions
move
away
centerline
with
dw.
optimal
performance
minimal
loss
rate
achieved
when
R
is
set
900
μm.
Язык: Английский
Effect of shear-thinning rheology on the dynamics and pressure distribution of a single rigid ellipsoidal particle in viscous fluid flow
Physics of Fluids,
Год журнала:
2024,
Номер
36(12)
Опубликована: Дек. 1, 2024
This
paper
evaluates
the
behavior
of
a
single
rigid
ellipsoidal
particle
suspended
in
homogenous
viscous
flow
with
power-law
Generalized
Newtonian
Fluid
(GNF)
rheology
using
custom-built
finite
element
analysis
(FEA)
simulation.
The
combined
effects
shear-thinning
fluid
rheology,
aspect
ratio,
initial
orientation
and
shear-extensional
rate
factor
various
regimes
on
particle's
dynamics
surface
pressure
evolution
are
investigated.
was
found
to
modify
trajectory
alter
kinematic
response.
Moreover,
distribution
over
is
significantly
reduced
by
rheology.
FEA
model
validated
comparing
results
case
obtained
from
well-known
Jefferys
analytical
model.
Furthermore,
extended
define
special
class
flows
extension
shear
components
typically
axisymmetric
nozzle
contractions.
findings
provide
an
improved
understanding
key
transport
phenomenon
related
physical
processes
involving
fluid-structure
interaction
(FSI)
such
as
that
which
occurs
within
flow-field
developed
during
material
extrusion-deposition
additive
manufacturing
fiber
reinforced
polymeric
composites.
These
insight
into
important
microstructural
formations
print
beads.
Язык: Английский