World Journal of Engineering,
Год журнала:
2024,
Номер
unknown
Опубликована: Март 21, 2024
Purpose
This
study
aims
to
analyze
the
two-dimensional
ferrofluid
flow
in
porous
media.
The
effects
of
changes
parameters
such
as
permeability
parameter,
buoyancy
Reynolds
and
Prandtl
numbers,
radiation
velocity
slip
energy
dissipation
parameter
viscosity
on
temperature
profile
are
displayed
numerically
graphically.
Design/methodology/approach
By
using
simplification,
nonlinear
differential
equations
converted
into
ordinary
equations.
Modeling
is
done
Cartesian
coordinate
system.
finite
element
method
(FEM)
Akbari-Ganji
(AGM)
used
solve
present
problem.
model
determines
each
parameter’s
effect
fluid’s
temperature.
Findings
results
show
that
if
increases,
fluid
but
decreases.
As
can
be
seen
figures,
by
increasing
a
reduction
an
enhancement
observed.
When
number
increase
If
speed
decreases,
also
increases.
Originality/value
considering
factors
like
thermal
conductivity
variable
this
context,
they
significantly
impact
slippage
conditions.
primary
objective
assess
influence
within
medium
behavior.
particular
configuration
chosen
due
essential
role
ferrofluids
their
extensive
use
engineering,
industry
medicine.
Heliyon,
Год журнала:
2024,
Номер
10(4), С. e26424 - e26424
Опубликована: Фев. 1, 2024
This
research
employs
a
local
thermal
non-equilibrium
(LTNE)
model
to
analyze
the
heat
transfer
phenomenon
through
porous
fin,
considering
natural
convection
and
radiation
effects.
The
infiltration
velocity
within
medium
is
evaluated
using
Darcy
model,
buoyancy
effects
are
accounted
for
Boussinesq
approximation.
Akbari-Ganji
method
(AGM)
applied
address
governing
energy
equations.
accuracy
of
proposed
solution
verified
by
comparing
it
with
numerical
results
obtained
from
finite
difference
(FDM),
element
(FEM),
earlier
investigations.
presented
regarding
total
average
Nusselt
number
temperature
profiles.
These
shed
light
on
influence
several
important
parameters,
such
as
conductivity
ratio,
dimensionless
thickness,
convectional
transfer,
external
internal
radiation.
analysis
reveals
that
decreasing
Rayleigh
Biot
numbers
reduces
profiles
solid
phase.
Additionally,
when
low
but
assigned
high,
between
fluid
phases
diminishes.
Furthermore,
increased
ratio
thickness
lead
higher
phase
temperatures.
exhibits
trend
increases
ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik,
Год журнала:
2024,
Номер
104(11)
Опубликована: Сен. 23, 2024
Abstract
In
today's
rapidly
advancing
world,
more
deliberate
development
and
implementation
of
energy‐efficient
thermal
management
systems
is
emergent.
industrial
engineering
contexts,
the
regulation
heat
mass
transfer
phenomena
heavily
swayed
by
factors
such
as
fluxes,
wall
temperature,
concentration
levels.
cryogenic
containers,
understanding
flux
temperature
essential
for
maintaining
ultra‐low
temperatures
over
extended
periods.
this
context,
our
paper
embarks
on
modeling
transient
dynamics
a
radiant
Casson
fluid
adjacent
to
steeped
plate,
which
featured
its
emission
both
fluxes.
The
plate
under
two
conditions,
namely
uniform
(UWT)
(UHF),
are
crucial
in
modulating
upward
downward
transport
processes.
Laplace
transform
(LT)
technique
yields
close‐form
solutions
model's
governing
equations.
distribution
flow
salient
physical
quantities
graphed
elucidated
response
intricate
parameters.
A
comparative
graphical
analysis
UWT
UHF
scenarios
reveals
stark
differences.
Notably,
fluid's
rate
appears
considerably
amplified
scenario
compared
one.
Furthermore,
setting
profoundly
influences
transportation
within
realm.
pronounced
parameter
tends
thin
out
velocity
profile.
Concurrently,
heightened
radiation
results
reduction
temperature.
theoretical
framework
explored
study
not
just
an
academic
exercise
but
holds
tangible
applicability
across
varied
sectors.
This
spans
from
rocket
chamber
cooling,
where
fine‐tuned
conditions
paramount
safeguarding
operations,
industries
like
cosmetics
food
processing,
demand
meticulous
ensure
product
excellence.
South African Journal of Chemical Engineering,
Год журнала:
2024,
Номер
50, С. 109 - 124
Опубликована: Июль 27, 2024
In
the
present
research,
an
effort
has
been
made
to
analytically
solve
heat
and
mass
linear/
nonlinear
as
well
steady/
unsteady
equations
in
a
viscous
nanofluid
squeezed
between
parallel
sheets.
Using
Python
SymPy
library,
with
properties
sheets
analyzed
symbolically
flow,
heat,
transfer
effects
through
Homotopy
Perturbation
Method
Akbari-Ganji
approaches.
The
two
nanofluids
selected
conduct
this
study
are
Copper
Al2O3,
whose
sizes
29
nm
47
respectively.
provided
details
encompass
outcomes
of
active
variables
on
flow
coupled
mass.
methods
have
resulted
top-of-the-line
consequences
compared
analytical
numerical
This
research
highlights
faster
more
accurate
computation
analytic
section
study.
outcome
shows
that
increase
Prandtl
number
Eckert
will
Nusselt.
However,
skin
friction
increases
Schmidt
number.
Furthermore,
rise
parameters
related
chemical
reactions
leads
elevated
Sherwood
presented
here
provide
innovative
precise
insight,
comparison
available
literature
also
proves
there
is
well-agreed
calculation.
Microchips
engineering
medical-related
industries
would
enjoy
obtained
from
maximum
minimum
amounts
respect
occur
at
η=0
η=1.
Moreover,
error
equal
0.0001
0.00001,
concentration
η=1
order.
Finally,
0.000016
0.000002,
Alexandria Engineering Journal,
Год журнала:
2024,
Номер
94, С. 354 - 365
Опубликована: Март 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.
Scientific Reports,
Год журнала:
2023,
Номер
13(1)
Опубликована: Авг. 15, 2023
Abstract
The
motion
of
the
fluid
due
to
swirling
a
disk/sheet
has
many
applications
in
engineering
and
industry.
Investigating
these
types
problems
is
very
difficult
non-linearity
governing
equations,
especially
when
equations
are
be
solved
analytically.
Time
also
considered
challenge
problems,
times
dependent
rare.
This
study
aims
investigate
problem
related
transient
rotating
angled
plate
through
two
analytical
techniques
for
three-dimensional
thin
film
nanomaterials
flow.
geometry
research
sheet
with
unsteady
nanomaterial
thin-film
moment.
problem's
conservation
mass,
momentum,
energy,
concentration
partial
differential
(PDEs).
Solving
PDEs,
their
solution,
serious
challenge,
but
by
using
similar
variables,
they
can
converted
into
ordinary
(ODEs).
derived
ODEs
still
nonlinear,
it
possible
approximate
them
analytically
semi-analytical
methods.
transformed
PDEs
set
nonlinear
appropriate
similarity
variables.
dimensionless
parameters
such
as
Prandtl
number,
Schmidt
Brownian
parameter,
thermophoretic
Nusselt,
Sherwood
numbers
presented
ODEs,
impact
was
four
cases.
Every
case
that
this
demonstrated
graphs.
used
modified
AGM
(Akbari–Ganji
Method)
HAN
(Hybrid
numerical)
methods
solve
which
novelty
current
study.
novel
made
former
more
complete.
second
technique
method,
because
been
numerically
previous
articles,
method
used.
new
results
were
obtained
solutions.
validity
solutions
proved
compared
Runge–Kutta
fourth-order
(RK4)
numerical
Case Studies in Thermal Engineering,
Год журнала:
2024,
Номер
59, С. 104452 - 104452
Опубликована: Апрель 27, 2024
In
this
paper,
we
introduce
an
innovative
thermoelectric,
photovoltaic
hybrid
system
and
investigate
its
performance
under
various
radiation
intensities
heat
transfer
coefficients
outside
the
cavity.
Our
findings
reveal
that
proposed
yields
twice
power
output
compared
to
a
traditional
plate
system.
Through
economic
analysis,
project
45%
reduction
in
energy
cost
with
novel
structure
full
Notably,
positioning
at
bottom
of
cavity,
where
maximum
occurs,
is
deemed
optimal.
analysis
demonstrates
significant
increase
generation
due
convection
approximately
9%
incoming
reflected
further
59%
without
Utilizing
artificial
neural
networks,
predict
thermal
electrical
generation,
achieving
Mean
Absolute
Error
(MAE)
below
3%
R-squared
value
exceeding
0.98.
Additionally,
our
model's
predictions
closely
match
experimental
results,
validating
accuracy
practical
utility.
This
comprehensive
study
advances
field
by
offering
design
outperforms
existing
solutions
while
providing
insights
into
optimizing
placement
enhancing
through
sophisticated
modeling
techniques.
