Numerical Analysis of Magnetohydrodynamics Mixed Convection and Entropy Generation in a Double Lid‐Driven Cavity Using Ternary Hybrid Nanofluids
Basma Souayeh
No information about this author
Advanced Theory and Simulations,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 28, 2025
Abstract
The
present
study
numerically
investigates
the
effects
of
a
magnetic
field
on
mixed
convection
flow
and
entropy
generation
within
double
lid‐driven
square
cavity
filled
with
hybrid
nanofluid.
is
induced
by
two
isothermally
heated
semi‐circles
located
bottom
left
walls
cavity.
ternary
composition
nanofluid
(aluminum
oxide/silver/copper
oxide‐water)
exposed
to
uniform
field.
velocity
ratio
moving
lids
radius
are
key
parameters
in
analysis.
employs
finite
volume
method
full
multigrid
acceleration
solve
coupled
continuity,
momentum,
energy,
equations,
along
relevant
boundary
conditions.
Key
dimensionless
considered
include
Hartmann
number
(0
≤
Ha
100),
Richardson
(0.01
Ri
1),
fraction
(3%
ϕ
12%),
internal
semi‐circle
(
β
=
0.5
(−2
λ
2).
Results
revealed
that
optimal
heat
transfer
achieved
for
0.04,
100,
0%,
1,
63%
enhancement.
Moreover,
maximum
rates
obtained
same
rate
47%,
reflecting
complex
balance
enhanced
associated
irreversibility's.
reveal
also
decreasing
function
implying
suppress
fluid
motion
due
Lorentz
force.
This
provides
valuable
resource
parametric
analysis
researchers
engineers,
aiding
design
optimization
thermal
management
systems
various
industrial
applications,
including
exchangers,
nuclear
reactors,
energy
systems.
Language: Английский
Impact of virtual baffles and magnetic nanofluid on thermo-hydraulic characteristics of sine wave mini channel
Basma Souayeh
No information about this author
Journal of Thermal Analysis and Calorimetry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 18, 2025
Language: Английский
Effect of initial pressure on the particle diffusion and permeability of carbon nanotubes in reverse electrodialysis process using molecular dynamics simulation
Journal of Thermal Analysis and Calorimetry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 11, 2025
Language: Английский
A penta-hybrid approach for modeling the nanofluid flow in a spatially dependent magnetic field
Nanotechnology Reviews,
Journal Year:
2024,
Volume and Issue:
13(1)
Published: Jan. 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.
Language: Английский
Improving the natural convection of the heat sink inside an enclosure by fin perforation for electronic applications
Heat Transfer,
Journal Year:
2024,
Volume and Issue:
54(1), P. 389 - 419
Published: Sept. 12, 2024
Abstract
The
present
study
aims
to
enhance
the
natural
convection
in
heat
sink
inside
an
enclosure
by
perforating
fins
for
power
electronic
applications.
is
a
cube
that
manufactured
such
way
upper
and
lower
surfaces,
as
well
front
back
are
thermally
insulated.
right
surface
hot,
while
left
cold
at
temperature
difference
∆
T
of
(4°C,
8°C,
10°C).
used
consists
five
attached
heated
surface.
perforated
with
perforation
number
NP
(4,
8,
12,
16)
diameter
DP
(0.5
1
cm).
Temperatures
measured
using
13
thermocouples
placed
within
distribution
determined
FLIR
E30BX
IR
thermal
camera,
velocity
contours
obtained
numerical
software.
main
results
showed
improvement
transfer
increase
perforations
(DP
=
cm)
was
found
be
more
efficient
than
.5
cm),
instance,
when
(∆
10°C)
(NP
There
2.9%
reduction
on
fins'
tip,
=(DP
percentage
3.5%
greater
expansion
lines
between
10°C),
where
rate
from
4
8°C)
reaches
20%
7%
respectively.
In
addition,
sinks
both
lighter
cost‐effective
terms
metal
usage
during
manufacturing
process.
Language: Английский
Heat Transfer Optimization Using Computational Insights into Nodal/Saddle Point Flow Patterns of Tera-Hybrid Nanofluid Containing Microbes in a Cylindrical Shells
Case Studies in Thermal Engineering,
Journal Year:
2024,
Volume and Issue:
64, P. 105430 - 105430
Published: Nov. 13, 2024
Language: Английский