Case Studies in Thermal Engineering,
Journal Year:
2024,
Volume and Issue:
55, P. 104161 - 104161
Published: Feb. 22, 2024
This
paper
undertakes
a
numerical
exploration
into
the
dynamics
of
fluid
flow
and
heat
transfer
within
stagnation
region
mixed
convection
scenario
involving
thermally
stratified
ternary
hybrid
nanofluid.
The
study
incorporates
impact
magnetohydrodynamic
velocity
slip,
while
also
considering
permeable
sheet
that
can
stretch
or
shrink.
equations
governed
problem
are
transformed
similarity
using
transformation.
Then
solved
utilizing
built
in
solver
(bvp4c)
MATLAB.
has
two
solutions,
as
expected.
Following
that,
outcomes
stability
analysis
show
viability
physical
robustness
first
solution.
Additionally,
identifies
magnetic,
suction,
volume
fraction
parameters
capable
delaying
turbulence
onset
boundary
layer.
Moreover,
transmission
nanofluid
is
enhanced
by
an
increased
fraction.
It
important
to
note
reported
results
specifically
pertain
combination
alumina,
copper,
titania
nanoparticles.
Different
combinations
nanoparticles
may
exhibits
unique
properties
related
both
behaviour
transmission.
International Journal of Numerical Methods for Heat & Fluid Flow,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 20, 2024
Purpose
The
hybrid
nanofluid
flow
due
to
a
rotating
disk
has
numerous
applications,
including
centrifugal
pumps,
paper
production,
polymers
dying,
air
filtration
systems,
automobile
cooling
and
solar
collectors.
This
study
aims
investigate
the
convective
heat
transport
magnetohydrodynamics
(MHD)
past
stretchable
surface
using
Yamada-Ota
Xue
models
with
impacts
of
generation
thermal
radiation.
Design/methodology/approach
carbon
nanotubes
such
as
single-wall
multi-wall
are
suspended
in
base
fluid
like
water
make
nanofluid.
problem’s
governing
partial
differential
equations
transformed
into
system
ordinary
similarity
transformations.
Then,
numerical
solutions
found
bvp4c
function
MATLAB
software.
pertinent
parameters
on
temperature
fields
depicted
tables
graphs.
Findings
Two
solution
branches
discovered
certain
range
unsteadiness
parameters.
rate
enhanced
when
radiation
effects
increased.
model
higher
than
model.
Furthermore,
it
is
observed
that
only
first
remains
stable
stability
analysis
implemented.
Originality/value
To
best
authors’
knowledge,
results
stated
original
new
investigation
MHD
transfer
extended
version
models.
Moreover,
novelty
present
improved
by
taking
Numerical Heat Transfer Part B Fundamentals,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 27
Published: June 21, 2024
This
research
aims
to
develop
a
mathematical
model
and
outline
the
implications
of
free
convection
flow
within
non-Newtonian
Williamson–Sutterby
type
nonfluid
through
stretching
surface
placed
horizontally
with
magnetic
dipole
effect.
The
present
attempt
establishes
influence
multiple
factors,
including
double
diffusion,
heat
flux.
Utilizing
Cattaneo–Christov
mass
flux
approximations,
shape
thermal
concentration
balance
equations,
incorporating
various
generalized
transport
laws.
Furthermore,
transportation
mechanism
incorporates
Arrhenius
activation
energy
binary
chemical
reactions.
impact
bioconvection
resulting
from
self-propelled
microorganisms
is
incorporated
into
fluidic
model.
A
nonlinear
set
partial
differential
equations
(PDEs)
are
appropriately
formulated,
employing
boundary
layer
approximations
theory,
comprehensively
describe
convective
flow.
PDEs
converted
ordinary
via
similarity
transformation,
then
computationally
computed
well-structured
RKF45
technique
shooting
algorithm.
To
validate
results,
comparison
made
published
findings
in
limiting
cases.
It
observed
that
velocity
profiles
exhibit
an
escalation
tandem
ascending
values
electric
parameter
mixed
convection.
Conversely,
diminishes
augmentation
factor,
ferrohydrodynamic
interaction
parameter,
porosity
Sutterby
fluid
parameter.
Temperature
elevate
response
escalating
Eckert
number,
radiation
Brownian
motion
while
diminishing
relaxation
constant,
Prandtl
distribution
exhibits
increasing
magnitude
thermophoresis
experiencing
reduction
improvement
behavior
Schmidt
number
ongoing
investigation
encompasses
wide
spectrum
applications
field
applied
sciences,
placing
particular
emphasis
on
oil
recovery,
geothermal
reservoirs,
engineering,
cooling
processes
pertinent
nuclear
reactors.
Journal of Mathematics,
Journal Year:
2024,
Volume and Issue:
2024(1)
Published: Jan. 1, 2024
This
study
investigates
the
effects
of
non‐Newtonian
Reiner–Philippoff
fluids
on
porous
media,
particularly
in
context
steady
radiative
mixed
convection
flow
and
heat
transfer
near
a
shrinking
plate
surface
presence
magnetohydrodynamics
(MHD).
The
mathematical
model
is
constructed
using
PDEs
transformed
into
ODEs
via
similarity
transformations,
with
numerical
solutions
obtained
MATLAB’s
bvp4c
function.
results
demonstrate
that
boundary
layer
separation
occurs
slowest
for
dilatant
fastest
pseudoplastic
fluids,
Newtonian
exhibiting
moderate
rates.
Thermal
radiation
media
porosity
parameters
are
found
to
reduce
by
approximately
0.95%
0.02%,
respectively,
while
accelerating
separation.
Conversely,
magnetic
suction
increase
about
0.08%
4.25%,
enhancing
both
fluid
velocity
temperature.
parameter
indicates
possibility
dual
solutions,
opposing
favoring
this
phenomenon
more
than
assisting
flow.
time‐based
stability
analysis
reveals
first
solution
stable,
whereas
second
unstable.
These
findings
provide
significant
insights
behavior
control
practical
applications
involving
fields.
ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 3, 2024
Abstract
An
incompressible
boundary‐layer
third‐grade
nanomaterial
stagnated
flow
confined
by
stretchy
regime
is
formulated.
The
laminar
magnetized
thermal
and
solutal
features
the
aspects
of
Brownian
diffusion,
generalized
thermal‐flux,
thermophoresis,
solutal‐flux.
dimensionalized
steady‐state
model
obtained
implementing
appropriate
variables.
subsequent
nonlinear
mathematical
analytically
computed
utilizing
homotopy
algorithm.
graphics
demonstration
nondimensional
fields
(i.e.,
velocity,
concentration,
temperature)
for
distinct
physical
variables
exhibited.
outcomes
skin‐friction
coefficient
are
calculated
confirmed
to
be
precise.
analysis
reveals
that
augmented
values
material
parameters
escalate
velocity
while
Hartman
number
exhibits
lower
velocity.
temperature
field
displays
a
decaying
trend
Prandtl
relaxation
variable
contrary
effects
nanoscale
thermophoresis
diffusive
diffusive)
reported.
Besides,
concentration
shows
decreasing
with
respect
Schmidt
number,
motion,
solutal‐relaxation
parameter
opposite
effects.
Furthermore,
this
study
could
valuable
design
various
lab‐on‐a‐chip
microfluidic
devices
in
biomedicine.
Besides
contributing
creation
new
devices,
they
may
also
advantageous
performing
genetic
testing
developing
innovative
tools.
