Effects of magnetic field and slippages on oscillating rigid spheres in magnetorheological ferrofluids
Physics of Fluids,
Год журнала:
2025,
Номер
37(1)
Опубликована: Янв. 1, 2025
This
study
investigates
the
intricate
dynamics
of
synchronized
and
desynchronized
oscillations
rigid
spheres
with
varying
diameters
immersed
in
magnetorheological
ferrofluids.
It
delineates
two
distinct
motion
types:
oscillation,
where
resonate
unison
due
to
magnetic
forces,
characterized
by
out-of-phase
movements
stemming
from
disparate
frequencies
hydrodynamic
interactions.
Employing
Stokes
flow
theory,
research
formulates
a
spherical
solution
applies
boundary
conditions
through
sophisticated
collocation
technique.
Noteworthy
findings
indicate
that
drag
force
coefficients
rapidly
converge
definitive
parameters,
including
ratio
sphere
diameters,
Hartmann
number,
frequency
slippage
conditions,
signifying
independent
at
sufficient
inter-sphere
separations.
Furthermore,
rigorously
examines
influence
variations
fluid
properties
fields
on
interactions,
while
also
evaluating
precision
numerical
methodologies
employed.
The
implications
this
are
profound,
offering
significant
insights
for
applications
necessitating
meticulous
control
over
particle
dynamics.
Язык: Английский
Heat transfer analysis of GO/water nanofluid flow under the influence of Joule heating and chemical reactions with MHD: analytical and numerical concept
Fateme Nadalinia Chari,
D.D. Ganji,
Mehdi Mahboobtosi
и другие.
Multiscale and Multidisciplinary Modeling Experiments and Design,
Год журнала:
2025,
Номер
8(5)
Опубликована: Апрель 9, 2025
Язык: Английский
Radiative porosity sodium alginate hybrid nanofluid flow over an exponential stretching/shrinking surface: Dual solutions
Nano-Structures & Nano-Objects,
Год журнала:
2025,
Номер
42, С. 101463 - 101463
Опубликована: Март 11, 2025
Язык: Английский
Hiemenz Flow of Ternary Hybrid Nanofluid Over a Linear Stretching/Shrinking Sheet: Duality and Stability Analysis
Partial Differential Equations in Applied Mathematics,
Год журнала:
2025,
Номер
unknown, С. 101165 - 101165
Опубликована: Март 1, 2025
Язык: Английский
Numerical Analysis of Radiative Magnetoviscoelastic Micropolar Flow External to a Sphere With a Convective Boundary Surface Condition
Heat Transfer,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 11, 2025
ABSTRACT
Increasing
attention
is
being
paid
to
the
study
of
heat
transfer
properties
non‐Newtonian
fluids
as
a
result
their
growing
use
in
many
industrial
and
manufacturing
processes.
Micropolar
have
garnered
lot
interest
for
potential
uses
because
distinctive
microstructures.
Both
viscoelastic
microstructural
characteristics
fluid
make
it
mimic
several
polymers.
Motivated
by
magnetic
polymer
coating
dynamics
operations,
this
article,
thermoconvective
nonlinear,
steady‐state
boundary
layer
flow
an
incompressible
third‐grade
micropolar
from
isothermal
sphere
with
field
thermal
radiation
investigated
theoretically
numerically.
The
model
incorporates
microelement
gyratory
(rotating)
motions
accurately
simulates
complex
polymeric
suspensions.
An
accurate
implicit
finite‐difference
Keller‐Box
method
second
order
used
solve
numerically
modified
nondimensional
conservation
equations
under
physically
suitable
conditions.
Verification
code
conducted
using
previous
special
cases
literature.
impacts
parameters,
that
is,
parameter
(
ϕ
),
material
parameters
ε
1
,
2
Biot
number
γ
R
Prandtl
Pr
M
V
Eringen
vortex
viscosity
K
dimensionless
tangential
coordinate
ξ
)
on
linear
(translational)
velocity,
angular
temperature
distributions
are
computed
depicted
graphically.
Additionally,
selected
skin
friction,
wall
couple
stress
(wall
velocity
gradient),
Nusselt
rate)
also
examined.
As
increases,
accelerates
farther
away
surface
while
decelerating
close
it.
oscillatory
response
microrotation
(angular)
indicates
reverse
spin
microelements.
coupling
(i.e.,
ratio
Newtonian
dynamic
viscosity)
causes
accelerate
decreasing
closer
Skin
friction
both
increased,
local
depleted
higher
values
parameter.
With
elevation
(),
there
marked
increase
whereas
(sphere
gradient)
depleted.
There
significant
depletion
rate
(Nusselt
number)
increasing
first
exhibit
considerable
elevation.
reduced.
interaction
parameter,
significantly
damped,
enhanced
(further
surface)
elevated
substantially,
thickness
polymer.
current
simulations
relevant
high‐temperature
processing
electromagnetic
polymers
curved
bodies.
Язык: Английский
Dual solutions for the Darcy–Forchheimer porous medium with convective heat transfer effect on rotating hybrid nanofluid
ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik,
Год журнала:
2025,
Номер
105(5)
Опубликована: Апрель 19, 2025
Abstract
In
this
research,
the
three‐dimensional
(3D)
rotating
/hybrid
nanofluid
(HNF)
developed
in
Darcy–Forchheimer
porous
medium
(DFPM)
has
been
examined
numerically
across
stretching/shrinking
surface
impact
of
convective
heat
transfer
and
source/sink
effect.
Moreover,
Forchheimer,
suction,
MHD
parameters
on
magnitudes
reduced
skin
friction
were
using
Tiwari‐Das
model.
The
governing
equations
considered
problem
are
transmuted
into
appropriate
structure
ordinary
differential
(ODEs)
by
employing
linear
similarity
variables.
resulting
model
ODEs
is
solved
utilizing
“three‐stage
Labatto
III‐A
technique”
provided
“MATLAB
software's”
bvp4c
solver.
addition,
to
make
evaluations,
current
numerical
results
compared
with
those
from
previous
studies.
Dual
branches
created
ODE
governance
system.
With
aid
stability
analysis,
a
single
stable
branch
identified.
Reduced
both
shown
increase
rate.
outcomes
demonstrated
that
number
dependent
parameter
ranges
for
porosity,
magnetic
given
value
rotation.
temperature
profile
enhanced
as
increased
amount
source
strength.
obtained
specified
assortments
related
parameters.
when
solid
volume
copper
was
improved,
strength
intensified
toward
Forchheimer
declined
suction
effects
branches.
Consequently,
findings
demonstrate
duality
occurs
,
but
no
fluid
flow
conceivable
.
Future
research
dual
solutions
HNFs
may
concentrate
improved
models,
turbulent
flows,
biological
applications,
experimental
validation.
These
developments
will
help
build
more
efficient
energy
systems,
industrial
thermal
management
solutions.
Язык: Английский
A penta-hybrid approach for modeling the nanofluid flow in a spatially dependent magnetic field
Nanotechnology Reviews,
Год журнала:
2024,
Номер
13(1)
Опубликована: Янв. 1, 2024
Abstract
The
penta-hybrid
nanofluid
is
a
that
contains
five
different
types
of
nanoparticles.
It
can
achieve
higher
heat
transfer
rates
than
conventional
hybrid
nanofluids
due
to
the
synergistic
effects
also
has
more
diverse
physical
and
thermal
properties,
which
make
it
adaptable
for
various
applications.
Therefore,
this
research
examines
influence
localized
magnetic
fields
on
vortex
dynamics
in
nanofluidic
flow
vertical
cavity
with
an
aspect
ratio
1:10,
driven
by
top
bottom
lid
moving
opposite
direction.
stream-vorticity
formulation
used
solve
dimensionless
governing
partial
differential
equation.
A
confined
field
form
horizontal
strips
been
applied
instead
uniform
throughout
domain,
realistic.
Moreover,
MATLAB
codes
developed
authors
are
investigate
how
these
parameters
affect
properties
nanofluids.
results
suggest
have
impact
stress,
patterns,
temperature
distributed.
presence
influences
spacing
isotherms,
indicating
even
distribution.
observed
stress
distribution
affected
field,
levels
near
walls
regions
velocity-induced
stress.
However,
certain
areas,
decrease
shear
depending
its
strength
orientation.
These
study
findings
implications
designing
operating
devices.
For
instance,
utilizing
help
regulate
distribution,
within
channels.
This
capability
could
prove
beneficial
range
applications,
such
as
cell
separation,
drug
delivery,
exchange
systems.
Язык: Английский
Dual Solutions of Two-Dimensional Hybrid Nanofluid Flow and Heat Transfer Past a Porous Medium Permeable Shrinking Sheet with Influence of Heat GenerationAbsorption and Convective Boundary Condition
Journal of Advanced Research in Numerical Heat Transfer,
Год журнала:
2024,
Номер
26(1), С. 67 - 83
Опубликована: Ноя. 30, 2024
In
this
study,
the
dual
solutions
of
two-dimensional
hybrid
nanofluid
flow
and
heat
transfer
past
a
porous
medium
permeable
shrinking
sheet
with
influence
generation/absorption
convective
boundary
condition
were
examined
using
bvp4c
solver
MATLAB
computational
framework.
The
utilization
in
presence
sheet,
considering
effects
conditions,
has
wide-ranging
applications
industries
such
as
cooling
systems,
aerospace,
chemical
engineering,
biomedical
applications,
energy
microfluidics,
automotive
thermal
management,
industrial
drying,
nuclear
reactor
cooling,
etc.
These
employ
improved
characteristics
nanofluids
efficient
control
offered
by
media
conditions.
governing
partial
differential
equations
(PDEs)
are
transformed
into
collection
higher-order
ordinary
(ODEs)
together
their
corresponding
subsequently
shown
both
numerically
graphically.
main
objective
inquiry
is
to
examine
relationship
between
solid
volume
fraction
copper
permeability
parameter
medium,
specifically
focusing
on
values
f''(0)
-
(0)
according
suction
effect.
current
research
also
integrated
temperature
velocity
profile
flow,
which
corresponds
permeability,
generation/absorption,
condition.
Dual
acquired
certain
combinations
parameters.
Non
unique
obtained
when
critical
point
reaches
,
for
effects.
Increasing
intensity
generation
absorption
leads
more
pronounced
thicker
layer.
Язык: Английский