EPJ Web of Conferences,
Journal Year:
2025,
Volume and Issue:
325, P. 01016 - 01016
Published: Jan. 1, 2025
This
study
focuses
on
incompressible
nanofluid
flow
over
nonlinear
stretching
boundary
layer
with
viscous
dissipation
and
thermal
radiation.
The
effect
of
thermophoresis
diffusive
Brownian
motion
uniform
heat
generation
or
absorption
is
also
studied.
entropy
analysis
performed
for
this
model.
spectral
quasi-linearisation
technique
employed
to
determine
the
impact
different
parameters
interest,
as
Nusselt
Sherwood
numbers.
performance
numerical
scheme
examined
through
residual
error
that
reveals
robustness
present
method
in
rendering
rapidly
convergent
solutions.
Results in Engineering,
Journal Year:
2024,
Volume and Issue:
23, P. 102648 - 102648
Published: Aug. 13, 2024
In
the
foreseeable
future,
heat
exchangers
will
continue
to
play
an
important
role
in
environmental
management
and
have
numerous
applications,
their
geometry
has
been
subject
of
interest
for
many
researchers.
The
main
goal
this
research
is
improve
exchangers'
thermal
performance
exergetic
efficiency
using
new
type
nanofluid.
concept,
effect
nanoencapsulated
phase
change
material
(NEPCM)
addition
water
producing
NEPCM
nanofluid
transfer
augmentation
shell
tube
exchanger
(STHE)
was
investigated,
experimentally.
Nanocapsules
were
synthesized
by
miniemulsion
polymerization
containing
(PCM)
as
core
chitosan
(GO/CS)
material.
After
synthesis
nanocapsules,
nanofluids
with
different
concentration
prepared
stability
thermophysical
properties
characterized.
subsequent
stage,
exergy
efficiencies
test
conducted
on
STHE
response
surface
method.
experiments
performed
at
conditions;
NPCM
(φ),
inlet
temperature
(Tin)
Re
number
optimse
efficiency.
optimum
level
φ,
Tin
maximum
ɛ
(73
%)
found
be
10.55
%,
78.35
°C
10365,
respectively.
experimental
results
demonstrated
that
proposed
could
enhance
system.
It
appears
a
combination
gives
better
cooling
rate
promising
alternative
along
other
techniques.
Results in Engineering,
Journal Year:
2024,
Volume and Issue:
22, P. 102315 - 102315
Published: May 23, 2024
The
power
electrical
devices
are
being
continuously
trimmed
down
and
must
disperse
a
greater
amount
of
heat
flux,
overheating
has
become
significant
issue.
Ferrofluids,
also
known
as
magnetic
nanofluids,
consist
solid
nanoparticles
that
exhibit
superior
thermal
conductivity
compared
to
their
underlying
fluids,
which
can
be
either
aqueous
or
oil
based.
This
facilitates
increased
rates
convective
transfer,
but
more
importantly,
it
allows
for
external
flow
modification
using
field.
work
is
unique
in
analyses
hybridized
ferrofluid
over
shrinking/stretching
surface
with
radiative
magnetization
force.
governing
equations
were
solved
the
bvp4c
function
MATLAB,
after
transformed
into
ordinary
differential
(ODEs)
by
similarity
transformations.
system
acquires
bimodal
solution,
stability
analysis
validates
physical
dynamic
first
solution.
local
skin
friction
coefficient,
Nusselt
number,
temperature
velocity
profiles,
substantial
influence
effects
all
studied
graphically
displayed.
key
findings
values
decreasing
both
second
solutions
increasing.
An
increasing
trend
observed
increases.
results
compareded
reported
literature
found
agreement.
Results in Engineering,
Journal Year:
2024,
Volume and Issue:
23, P. 102441 - 102441
Published: June 21, 2024
When
it
comes
to
storing
energy
and
releasing
when
needed,
packed
bed
storage
systems
are
considered
be
one
of
the
most
efficient
available.
This
paper
studies
thermal
performance
melting
process
in
a
system
using
spherical
capsules
through
CFD
modeling.
The
effective
model
was
used
simulate
fluid
flow
enthalpy
porosity
method
solve
phase
change
material
(PCM)
domain.
were
filled
with
three
various
types
materials,
while
water
utilized
as
heat
transfer
fluid.
Due
importance
configurations
materials
beds,
effects
layouts
them
on
investigated.
Moreover,
Al2O3
nanoparticles
cheap
easily
available
added
materials.
Also,
inlet
rate
(HTF)
examined.
According
results,
positioning
decreasing
order
temperature
direction
is
able
decline
charging
time
by
about
1600
seconds
increase
efficiency
6.8%.
addition
decrease
1900
best
case
system's
7.5%.
Increasing
HTF
from
2.5
10-5
5
(1.5
3
Lit/min)
reduced
1800
seconds.
Results in Engineering,
Journal Year:
2024,
Volume and Issue:
23, P. 102666 - 102666
Published: Aug. 3, 2024
The
flow
of
a
three-dimensional
incompressible
Carreau
model
by
inserting
iron
oxide,
titanium,
copper
and
aluminum
in
stretched
wavy
cylinder
is
inspected
this
research
mixing
the
nanoparticles
two
phases
i.e.
dust
fluid
phase.
rheology
considered
to
present
behavior
ethylene
glycol
liquid.
contribution
Hall
current
with
ionization
ion
slips
under
convective
boundary
conditions
utilizing
comportment
radiation
external
heat
source
thermal
transport
expression
considered.
Numerically,
an
implicit
finite
difference-based
approach
(FDBA)
namely
element
method
(FEM)
used
handle
nonlinear
ODEs
several
graphs
are
plotted
against
numerous
emerging
parameters.
Moreover,
shear
stresses
transfer
coefficient
calculated
their
discussed.
velocity
field's
inclination
depicted
graphically
augmenting
values
Biot
number,
which
further
describes
comparative
study
for
monitor
motion.
ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik,
Journal Year:
2025,
Volume and Issue:
105(3)
Published: March 1, 2025
Abstract
Owing
to
peak
thermal
consequences
and
stable
properties,
the
nanofluids
offer
various
kinds
of
applications
in
solar
collectors,
automotive
industry,
air
conditioning
systems,
renewable
energy,
cooling
electronics,
so
forth.
Following
such
motivated
mind,
objective
current
work
is
analyze
improved
characteristics
heat
mass
transfer
due
interaction
comprising
variable
features.
The
assumptions
nanofluid
viscosity,
conductivity,
Brownian
diffusivity,
motile
density
have
been
carried
out.
stability
ensured
by
decomposition
microorganisms.
flow
subject
a
porous,
saturated,
moving
surface
with
suction
effects.
Additionally,
problem
updated
utilizing
chemical
reaction
radiative
governing
equations
are
interrupted
into
dimensionless
forms.
numerical
solution
computed
help
shooting
scheme.
results
interpreted
physically
for
involved
parameters.
It
assumed
that
presence
porous
media
effects
leads
an
improvement
phenomenon.
diffusivity
beneficial
enhancing
transport
process.
Journal of Thermophysics and Heat Transfer,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 14
Published: March 24, 2025
This
work
presents
a
numerical
investigation
of
laminar
flow
[Formula:
see
text]
tetra-hybrid
nanoliquid
in
microtube
subjected
to
constant
wall
heat
flux.
A
model
was
developed
and
validated
using
available
experimental
analytical
data.
The
combined
effects
volume
fraction,
viscous
dissipation,
slip
velocity,
external
magnetic
field
on
transfer
irreversibility
parameters
are
investigated.
results
revealed
that
enhances
the
microflow
comparison
with
base
liquid,
mono,
di,
ternary
hybrid
nanoliquids,
an
increase
all
components
reduction
Bejan
number.
higher
velocity
improves
reduces
total
entropy
production,
while
Brinkman
number
increases
production.
nanoparticle
or
intensity
field,
leads
evolutions
discussed
this
paper.
