Nanotechnology Reviews,
Год журнала:
2023,
Номер
12(1)
Опубликована: Янв. 1, 2023
Abstract
The
aim
of
this
study
is
to
provide
numerical
solutions
magnetohydrodynamic
(MHD)
cross
flow
with
heat
and
mass
transfer
over
a
stretching
sheet
in
hybrid
nanofluid
suction/injection
convective
boundary
conditions.
This
will
be
accomplished
by
presenting
numeric
solutions.
Nanoparticles
graphene
oxide
silver
were
suspended
kerosene
oil
as
the
base
fluid
taken
into
consideration
hybrid.
After
that,
physical
problem
modeled
set
partial
differential
equations,
which
are
then
transformed
an
equivalent
system
nonlinear
ordinary
equations
(ODEs)
making
use
relevant
similarity
transformations.
To
gain
different
graphical
results
for
analyzing
influence
numerous
restrictions
on
velocity,
heat,
profiles,
ODEs
solved
using
computing
power
Lobatto
IIIA
technique.
plot
velocity
profile,
temperature,
concentration,
entropy
generation
Bejan
number
separating
magnitude
like
that
index
(
0.1<n2.0
0.1\lt
n\lt
2.0
),
Weissenberg
We1.0
{\rm{We}}\lt
1.0
Suction/injection
S
S\lt
Magnetic
parameter
(0.1
<
M
1.0),
Biot
mathvariant="normal">Bi
0.3
{\rm{Bi}}\lt
0.3
Radiation
mathvariant="normal">Rd
{\rm{Rd}}\lt
Schmidt
1.1
mathvariant="normal">Sc
1.1\lt
{\rm{Sc}}\lt
Chemical
reaction
).
We
noted
when
{\rm{We}}
)
increases,
speed
increase
well.
Also,
increasing
values
M
slows
but
opposite
effect
observed
temperature
profile.
Moreover,
greater
,
We,
S
reduced
local
skin
friction.
It
concluded
better
than
percentage
values.
used
industry
technology
fluid-based
systems
shrinkable
or
flexible
materials,
MHD
meters,
pumps,
drawing
plastic
strips.
Because
nanoparticles
up
cooling
process,
they
important
cutting
production.
Journal of Porous Media,
Год журнала:
2023,
Номер
27(5), С. 67 - 84
Опубликована: Дек. 6, 2023
The
present
investigation
focuses
on
the
intricate
interplay
of
multiple
stratified
effects
stagnation
point
nanofluid
flow
with
gyrotactic
microorganisms
across
a
porous
medium.
study
encompasses
comprehensive
numerical
analysis,
examining
impacts
varying
parameters,
such
as
stratification
porosity,
etc.,
characteristics.
behavior
further
adds
complexity
to
analysis.
findings
contribute
deeper
understanding
combined
and
their
consequences
heat
mass
transfer
within
system.
Such
insights
hold
relevance
in
various
engineering
environmental
applications,
including
biofuel
production
water
treatment
processes.
Numerical
solutions
are
obtained
via
fifth
order
Runge-Kutta-Fehlberg
method
shooting
technique.
A
graphical
view
velocity,
temperature,
concentration,
density
microorganism-profile-concerned
parameters
discussed
detail.
comparison
local
Nusselt
number
for
distinct
values
Prandtl
reveal
validity
current
results.
microorganism
fields
lessened
enhancement
thermal,
solutal,
motile
parameters.
Also,
concentration
field
boosts
thermophoresis
Brownian
motion
parameter.
ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik,
Год журнала:
2024,
Номер
104(4)
Опубликована: Янв. 19, 2024
Abstract
The
current
study
adopts
a
Bernoulli
wavelet
technique
to
explore
the
magnetohydrodynamic
(MHD)
boundary
layer
flow
of
Casson
fluid
through
wedge.
A
nanofluid
across
wedge
has
been
investigated
for
its
stable
laminar
MHD
flow,
heat,
and
mass
transport
characteristics.
By
choosing
worthwhile
non‐dimensional
parameters,
governing
equation
is
reformed
into
dimensionless
Falkner–Skan
equation.
consequent
nonlinear
addressed
via
method.
For
range
different
values
physical
nature
visually
observed.
Fluid
velocity
rises
with
rise
in
parameter,
magnetic
parameter.
Local
wall
skin
friction
increases
increase
parameter
values.
To
ensure
accuracy
findings,
local
estimated
tested
other
techniques
that
are
already
reported
existing
research.
Alexandria Engineering Journal,
Год журнала:
2022,
Номер
66, С. 257 - 268
Опубликована: Дек. 2, 2022
Entropy
generation
for
convective
magnetized
Reiner-Rivlin
liquid
conveying
tiny
particles
stretched
flow
is
addressed.
Energy
expression
comprises
dissipation,
Ohmic
heating,
and
radiation.
Buongiorno
model
(thermophoresis
random
diffusions)
nanomaterial
employed.
Isothermal
reaction
has
been
also
Non–
dimensional
differential
systems
are
developed
by
suitable
transformations.
Non-dimensional
expressions
solved
Newton
built
in-shooting
technique.
Concentration,
temperature,
entropy
rate
velocity
explored.
Thermal
transport
gradient
of
concentration
against
emerging
parameters
discussed.
Velocity
temperature
magnetic
parameter
have
opposite
trends.
the
effect
enhanced.
An
enhancement
in
fluid
noted
convection
parameters.
increase
radiation
causes
ant
increment
rate.
Concentration
reverse
trend
thermophoresis
variables.
The
scenario
mass
holds
Schmidt
number.
Similar
found
through
diffusion
A
higher
Brinkman
number
an
generation.
larger
estimation
amplifies
thermal
Heliyon,
Год журнала:
2023,
Номер
9(4), С. e15056 - e15056
Опубликована: Апрель 1, 2023
The
present
study
addressed
the
physical
significance
of
entropy
generation
for
mixed
convection
time-dependent
flow
cross-hybrid
nanoliquid
due
to
stretched
surface
at
a
stagnation
point.
Plot
heat
transport
is
discoursed
by
applying
role
thermal
radiation
under
convective
conditions.
For
hybrid
nanofluid,
engine
oil
used
as
base
liquid
with
copper
(II)
oxide
CuO
and
titanium
dioxide
TiO2
nanoparticles.
existing
model
framed
in
highly
partial
differential
equation
system.
governing
equations
have
been
transformed
into
set
ODS's
using
similar
scaling
operation.
Following
this,
resulting
ODEs
are
solved
numerically
through
BVP4c.
primary
goal
this
research
analyze
results
varying
stretching
ratio
parameter
(
λ
),
Weissenberg
We
Rd
Biot
number
Bi
)
both
pure
+
/
EO
on
velocity,
temperature,
drag
force,
transfer
well
generation,
Bejan
was
studied.
A
drop
velocity
observed
increasing
values
upsurge
rising
value
unsteady
while
these
parameters
associated
temperatures.
Copper
nanoparticles
increase
Engine
(EO)
enactment,
making
it
more
useful
fluid.
Further,
some
significant
industrial
engineering
applications
related
problem
discourse.
Modern Physics Letters B,
Год журнала:
2023,
Номер
38(19)
Опубликована: Дек. 12, 2023
The
effect
of
surface
roughness,
magnetic
field,
and
couple
stress
on
the
performance
secant
slider
bearing
is
studied
in
this
paper.
effectiveness
assessed
by
using
a
liquid
as
lubricant
process.
Because
microstructural
impacts,
fluids
have
distinctive
rheological
characteristics.
These
features
potential
to
make
major
impact
bearing’s
performance.
novel
aspect
study
that
roughness
taken
into
consideration.
modified
Reynolds
equation
derived
Christensen’s
stochastic
theory
for
roughness.
Here,
both
transverse
longitudinal
patterns
are
considered.
analytical
solutions
obtained
steady-state
pressure,
load-carrying
capacity,
film
stiffness,
damping
coefficient.
results
presented
various
parameters
through
graphs
tables.
combined
field
significant
It
noticed
increase
with
parameter,
reverse
phenomenon
observed
parameter.
When
pattern
assumed
bearing,
characteristics
like
load,
stiffness
film,
coefficient
significantly.
Computation,
Год журнала:
2024,
Номер
12(3), С. 46 - 46
Опубликована: Март 3, 2024
The
present
study
aims
to
offer
new
numerical
solutions
and
optimisation
strategies
for
the
fluid
flow
heat
transfer
behaviour
at
a
stagnation
point
through
nonlinear
sheet
that
is
expanding
or
contracting
in
water-based
hybrid
nanofluids.
Most
nanofluids
typically
use
metallic
nanoparticles.
However,
we
deliver
approach
by
combining
single-
multi-walled
carbon
nanotubes
(SWCNTs-MWCNTs).
presumptively
steady,
laminar,
surrounded
constant
temperature
of
ambient
body
walls.
By
using
similarity
variables,
model
partial
differential
equations
(PDEs)
with
magnetohydrodynamics
(MHD)
effect
on
momentum
equation
converted
into
non-dimensional
ordinary
(ODEs).
Then,
dimensionless
first-order
ODEs
are
solved
numerically
MATLAB
R2022b
bvp4C
program.
In
order
explore
range
computational
physical
quantities,
several
variables
manipulated,
including
magnetic
parameter,
stretching/shrinking
volume
fraction
parameters
mono
nanotubes.
To
enhance
originality
effectiveness
this
practical
applications,
optimise
coefficient
via
response
surface
methodology
(RSM).
We
apply
face-centred
central
composite
design
(CCF)
perform
CCF
Minitab.
All
our
findings
presented
illustrated
tabular
graphic
form.
have
made
notable
contributions
disciplines
mathematical
analysis
dynamics.
From
observations,
find
multiple
appear
when
parameter
less
than
1.
also
detect
double
shrinking
region.
Furthermore,
increase
SWCNTs-MWCNTs
increases
both
skin
friction
local
Nusselt
number.
compare
performance
nanofluids,
note
work
better
single
coefficients.
Alexandria Engineering Journal,
Год журнала:
2024,
Номер
98, С. 159 - 169
Опубликована: Май 2, 2024
The
stretched
flow
with
heat
transfer
has
pivotal
role
in
geothermal
energy
system,
oil
extraction,
continuous
casting,
metal
spinning
and
electronic
cooling.
Owing
to
this
fact,
the
current
analysis
focuses
on
non-linear
thermal
radiation
effect
bio-convective
stagnation
point
by
a
stretchable
wedge.
Darcy
relation
is
used
discuss
porous
space.
Convective
conditions
are
deliberated.
Non-uniform
source
addressed.
Soret
Dufour
outcomes
analyzed.
Dissipation
magnetohydrodynamics
discussed.
Presence
of
gyrotactic
microorganisms
along
chemical
reaction
considered.
Related
partial
differential
equations
(PDEs)
reduced
into
dimensionless
ordinary
(ODEs)
through
adequate
transformations.
Optimal
homotopy
method
(OHAM)
adopted
for
computations
related
nonlinear
systems.
Flow,
microorganism
field,
concentration
temperature
distribution
graphically
explored.
Numerical
coefficient
skin
friction,
density
number
Sherwood
Nusselt
numbers
against
emerging
parameters
It
noted
that
velocity
friction
have
similar
scenario
modified
Hartman
number.
Thermal
transport
rate
reverse
trends
non-uniform
variable.
An
augmentation
seen
Biot
Larger
increasing
trend
temperature.
solutal
noticed.
leads
enhancement.
Microorganism
field
motile
Peclet
opposite
response.
There
reduction
Lewis
