Journal of Computational Design and Engineering,
Journal Year:
2024,
Volume and Issue:
12(1), P. 1 - 14
Published: Oct. 30, 2024
Abstract
This
research
provides
an
extensive
analysis
with
various
γ
on
natural
convection,
thermal
entropy
generation,
fluid
flow,
and
temperature
distribution
in
the
porous
cavity.
The
impact
of
studied
geometrical
parameters,
Ha,
Da,
Pr,
γ,
ε,
performance
is
carefully
examined.
finite
element
method
(FEM)
carried
out
to
analyze
flow
heat
present
media.
For
in-depth
performance,
novel
aspects
this
are
thought
be
important
parameters
that
comprise
ε
for
significant
assessments
average
Nusselt
number
media
varying
square
size
vanes
at
corners
effect
variable
cooled
In
validation,
calculation
results
was
adapted
accurately
FEM’s
distribution,
number.
Numerical
revealed
affected
widely
generation
entropy.
Additionally,
hot
cold
significantly
impacted
by
square-sized
chamber.
showed
a
increase,
Hartman
being
most
contributor.
Moreover,
as
Darcy
grew,
rose
apart
from
=
1
0.2.
Case Studies in Thermal Engineering,
Journal Year:
2024,
Volume and Issue:
54, P. 103948 - 103948
Published: Jan. 5, 2024
This
work
integrates
incompressible
smoothed
particle
hydrodynamics
(ISPH)
with
machine
learning
(ML)
to
examine
the
uses
of
two
different
domain
shapes,
spline
star-domain,
and
triangle
on
double
diffusion
nano-encapsulated
phase
change
material
(NEPCM).
The
effects
thermal
radiation
exothermic
chemical
reactions
are
conducted
in
this
work.
hexagonal-shaped
is
located
inside
center
star-shape
carrying
(Th&Ch).
left/right
walls
star
shape
kept
at
(Tc&Cc)
other
have
an
adiabatic
condition.
It
recommended
smoothness
closed
curves
heat
mass
transfer
by
changing
curves.
present
investigations
transmission
NEPCM
within
a
complicated
can
be
employed
cooling
systems
electronic/battery,
exchangers,
food
processing,
engineering.
ISPH
simulations
executed
for
pertinent
parameters,
Darcy
number,
Frank-Kamenetskii
Rayleigh
Dufour
Soret
parameter.
performed
showed
significance
compared
smoothening
nanofluid
flow
double-diffusive
convection
annulus.
number
promising
factor
enhancement
controlling
zone
At
spline-star
cavity,
maximum
velocity
rises
32.32
%
54.95
when
grows
from
0
5,
increases
5.
works
effectively
enhancing
distribution
concentration
large
temperature
differences.
Machine
plays
vital
role
many
engineering
applications.
Hence,
ML's
powerful
capabilities
predict
average
Nu‾
Sh‾.
In
proposed
ML
model,
dimensionless
time
parameter
used
as
input
while
their
corresponding
numeral
estimated
values
Sh‾
output
targets
model.
predicted
suggested
model
comparatively
small
error
less
than
1
%.
Journal of Engineering Research,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 1, 2024
In
this
study,
magnetohydrodynamic
(MHD)
natural
convection
flow
investigated
a
large
heat
transfer
trend
in
uniform
magnetic
field
finite
element
approach.
For
verification,
calculation
results
adjusted
high
stream
function,
temperature
distribution,
and
the
average
Nusselt
of
MHD.
This
research
presents
an
innovative
contribution
by
analyzing
corrugated
geometries,
specifically
focusing
on
square-corrugated
(SW)
circle-corrugated
(CW)
configurations.
Additionally,
The
influence
key
parameters
constituting
Hartman
number,
Rayleigh
Darcy
which
largely
affects
velocities,
temperature,
was
accurately
observed
present
study.
To
computationally
resolve,
wave
is
in-stream
behavior
but
has
not
influenced
distribution
or
parameter.
maximum
minimum
value
number
related
to
S
at
Da=10−5
case
1
WC
2,
respectively.
Furthermore,
decreasing
parameter
increases
velocity
u
v
strength
both
cases.
Alexandria Engineering Journal,
Journal Year:
2024,
Volume and Issue:
94, P. 354 - 365
Published: March 29, 2024
This
paper
investigates
the
behavior
of
magnetohydrodynamic
(MHD)
peristaltic
flow
with
electroosmosis.
The
Jeffrey
fluid
in
microchannel
under
influence
homogeneous-heterogeneous
chemical
reaction
has
been
taken.
heat
absorption
and
nonlinear
radiation
are
also
scrutinized
here.
study
contributes
to
fundamental
understanding
complex
dynamics
microscale
systems
offer
valuable
insights
for
designing
optimizing
microfluidic
devices.
In
framework
mathematical
simulation,
relevant
dimensional
equations
reduced
into
dimensionless
by
using
linear
transformations.
Thus
Debye-Hückel
linearization
employed.
streamline
approach
modelling
performed
within
limits
δ≪1
Re→0.
appropriate
temperature
concentration
boundary
conditions
solved
perturbation
whereas,
exact
solution
is
found
velocity
equation.
A
graphical
depiction
crucial
physical
characteristics
on
velocity,
temperature,
streamlines
reported
last
section.
It
observed
that
distribution
decreases
higher
value
M
(0.5≤M≤2)
however,
it
increases
escalating
values
Uhs
(−0.5≤Uhs≤1.5).
When
Rn(0.1≤Rn≤0.6)
gets
stronger
then
profile
decreases.
noticed
decays
owing
enhancement
Sc(−0.5≤Sc≤1.5).
As
increases,
size
trapped
bolus
Escalating
ratio
parameterθw(1.0≤θw≤1.6)enhances
Nusselt
number.
novelty
this
lies
comprehensive
analysis
multiple
phenomena
a
single
framework.
interplay
between
MHD
electroosmotic
flow,
homogeneous
heterogeneous
reactions,
peristalsis,
thermal
radiation,
no-slip
condition
not
explored
previous
research.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(16), P. e35690 - e35690
Published: Aug. 1, 2024
This
article
aims
to
investigate
the
thermophysical
properties
of
viscous
nanofluid
in
two-dimensional
geometry
a
triangular
cavity
containing
inverted
triangle,
square,
and
rhombus
obstacles
with
different
boundary
conditions.
The
conditions
are
investigated
two
mechanisms:
1)
uniform
temperature
at
base
2)
non-uniform
(sinusoidal
function)
cavity.
finite
element
method
was
used
solve
governing
equations
flow.
effect
flow
control
parameters
on
velocity
profile
is
considered
wide
range
Rayleigh
Prandtl
numbers.
innovation
this
study
use
compare
their
profiles
distribution
results
show
that
cavity,
increase
buoyancy
force
number,
values
velocities
increased
caused
formation
vortex
flow,
pattern
vectors
rule
has
given
distinctive
feature.
Also,
application
trigonometric
functions
general
sinusoidal
particular
high
frequency
can
effectively
create
heat
transfer
rate.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: March 26, 2024
This
article
investigates
natural
convection
with
double-diffusive
properties
numerically
in
a
vertical
bi-layered
square
enclosure.
The
cavity
has
two
parts:
one
part
is
an
isotropic
and
homogeneous
porous
along
the
wall,
adjacent
aqueous
fluid.
Adiabatic,
impermeable
horizontal
walls
constant
uniform
temperatures
concentrations
on
other
are
maintained.
To
solve
governing
equations,
finite
element
method
(FEM)
employed
predicted
results
shows
impact
of
typical
elements
double
diffusion,
namely
porosity
thickness,
rotation
angle,
thermal
conductivity
ratio.
Different
Darcy
Rayleigh
numbers
effects
heat
transfer
conditions
were
investigated,
Nusselt
number
border
layers
was
obtained.
expected
results,
presented
as
temperature
field
(isothermal
lines)
velocity
behavior
X
Y
directions,
show
different
aforementioned
parameters
diffusion
convective
transfer.
Also
that
increase
thickness
layer,
decreases,
but
at
higher
than
0.8,
we
will
see
number.
Increasing
ratio
values
less
leads
to
decrease
average
number,
by
increasing
parameter
from
1
10,
increase.
A
rotational
angle
reduces
thermosolutal
transfer,
numbers,
increases
Nusselt.
These
confirm
findings
obtained
Finite
Element
Method
(FEM),
which
main
idea
this
research,
good
agreement
previous
studies
have
been
done
numerical
methods.
Journal of Thermal Engineering,
Journal Year:
2024,
Volume and Issue:
10(1), P. 142 - 152
Published: Jan. 31, 2024
This
research
presents
a
numerical
investigation
of
the
flow
field
and
heat
transfer
Visco-plastic
fluid,
The
Bingham-Papanastasiou
model
is
used
to
examine
forced
convection
Viscoplastic
fluid
between
two
concentric
cylinders
with
wavy
inner
surface.
By
focusing
on
this
particular
configuration
(wavy
cylinder
shape),
where
surface
exhibits
as
hot
wall
while
outer
considered
cold
wall.
numerically
achieved
by
using
Comsol
Multiphysics,
which
based
finite‐volume
method,
employing
Galerkin’s
method
for
solving
governing
equations.
parameters
studied
in
are
expressed
following
values:
r/
R=1/3,
Reynolds
number
(Re=1,
10,
50),
undulation
(nu=0,
6,
12,
24).
Increasing
inertia
parameter
results
higher
intensity
thermal
buoyancy,
positively
influencing
transfer,
particularly
at
Re=50.
Furthermore,
acceleration
within
investi-gated
space
improves
hydrodynamic
behavior,
facilitating
exchange
energy
walls.
Additionally,
it
has
been
discovered
that
an
undulating
shape
specific
undulations
(nu=6)
maximizes
hydrothermal
performance
investigated
volume.
presence
these
enhances
mixing
dis-rupts
formation
stagnant
regions
,which
leading
improved
transfer.
