Case Studies in Thermal Engineering,
Год журнала:
2023,
Номер
53, С. 103829 - 103829
Опубликована: Ноя. 30, 2023
The
force
of
attraction
between
two
masses
increases
as
gravity
increases.
Gravity
is
very
important
mechanism
for
mass
transfer
characteristics
across
the
inclined
shape.
significant
purpose
current
study
to
examine
amplitude
in
under
reduced
gravity-driven
flow.
impact
heat
source/sink
on
periodic
mixed
convective
flow
plate
has
been
evaluated.
oscillatory
rate
and
transmission
are
explored
at
three
angles
π/6,
π/4
π/3.
assumed
maximum
temperature
difference.
governing
dimensional
model
transformed
into
non-dimensional
equations
with
appropriate
scaling
variables.
again
non-oscillatory,
real
imaginary
parts.
For
smooth
coding,
primitive
formulation
used
finite
difference
method
change
forms
algebraic
system.
solved
Gaussian
elimination
scheme
display
velocity
field,
distribution
concentration
numerically.
±δ,
Rg,
buoyancy
variable
λT,
modified
factor
λC,
Prandtl
Pr,
gravitation
Schmidt
Sc
oscillating
behavior
shear
stress,
fluctuating
transfer,
secured.
It
found
that
fluid
each
parameter
source
+δ=0.4.
can
be
seen
Rg
sink
−δ=0.3.
shearing
stress
+δ
obtained
oscillation
±δ
Rg=1.2.
Physica Scripta,
Год журнала:
2024,
Номер
99(6), С. 065215 - 065215
Опубликована: Апрель 18, 2024
Abstract
The
consequence
of
exothermic/endothermic
chemical
reactions
and
Arrhenius
activation
on
the
heat
mass
transport
liquid
flow
past
a
cylinder
in
incidence
magnetic
dipole
is
considered
current
investigation.
Magnetic
dipoles
are
used
medical
applications
such
as
magnotherapy
spectroscopy,
to
produce
static
fields.
Scientists
engineers
can
improve
effectiveness
or
transfer
operations
by
analyzing
impact
building
systems
with
optimized
flows.
modelled
equations
converted
into
non-dimensional
ordinary
differential
(ODEs)
using
similarity
variables.
resultant
solved
employing
physics-informed
neural
network
(PINN)
technique.
Additionally,
comparison
PINN
numerical
method
Runge–Kutta
Fehlberg’s
fourth-fifth
order
(RKF-45)
studied.
effects
different
parameters
temperature,
concentration,
velocity
profiles
for
endothermic/exothermic
instances
shown
graphically.
thermal,
velocity,
concentration
get
stronger
curvature
parameter
values
increase
both
endothermic
exothermic
cases.
influence
energy
parameters,
reaction
thermal
also
depicted.
Case Studies in Thermal Engineering,
Год журнала:
2024,
Номер
56, С. 104218 - 104218
Опубликована: Март 6, 2024
This
paper
investigates
the
impact
of
homogeneous-heterogeneous
reactions
on
flow
between
coaxial
cylinders
with
heat
generation/absorption.
From
an
engineering
perspective,
in
energy
absorber
design
for
shrinking
and
expanding
a
circular
metal
tube
production
extruding
materials
by
stretching
designing
great
care
is
necessary
to
regulate
skin
friction
transfer
rate.
Studying
processes
confined
geometries
enhances
basic
knowledge
chemical
kinetics
fluid
dynamics.
Researchers
may
increase
efficiency/heat
activities
systems
optimized
analysing
effects
flow.
Both
cost
reductions
higher-quality
products
result
from
this
optimization.
research
yield
insights
far-reaching
implications
across
multiple
disciplines.
The
modelled
equations
are
transformed
into
ordinary
differential
employing
apt
similarity
transformations
obtained
solved
using
collocation
method
Probabilists'
Hermite
polynomial.
Graphs
illustrating
variation
velocity,
thermal,
concentration
profiles
have
been
plotted
influence
various
parameters.
curvature
parameter
causes
velocity
thermal
profile
upsurge.
rise
source/sink
improves
transport.
As
heterogeneous
homogeneous
parameters
upsurge,
decreases.
Case Studies in Thermal Engineering,
Год журнала:
2023,
Номер
51, С. 103570 - 103570
Опубликована: Окт. 1, 2023
In
bioremediation,
pollutants
are
broken
down
or
detached
from
an
atmosphere
using
microorganisms
like
bacteria
fungus.
These
can
either
ingest
contaminants
be
enzymatically
converted
into
innocuous
molecules.
Bioremediation
enhanced
by
several
techniques,
such
as
bioaugmentation
(the
introduction
of
specific
microorganisms),
biostimulator
provision
nutrients
to
stimulate
microbial
activity),
and
bioventing
air
oxygen
encourage
growth).
The
creation
dissipation
heat
in
a
convective
non-Newtonian
Oldroyd-B
fluid
flow
across
nonlinear
stretching
sheet
three-dimensional
boundary
layer
is
examined
this
study.
flow's
highly
partial
differential
equations
transformed
ordinary
the
study
via
similarity
transformations.
bvp4c
technique
MATLAB
then
used
resolve
these
equations.
looks
at
some
variables,
including
temperature,
concentration,
presence
microorganisms,
velocity,
transfer
rate,
shear
stress.
parameters
evaluated
graphically
presented
tabular
form,
with
focus
on
local
Deborah
numbers
(β₁
β₂),
buoyancy
(λ₁
λ₂),
Prandtl
number
(Pr),
Schmidt
(Sc),
Bio-convection
(Sb),
Peclet
(Pe).
results
show
that
raising
parameter
improves
velocity
field
rate
transfer.
Visual
representations
effects
non-dimensional
factors
motile
microorganism,
temperature
profiles
help
comprehend
underlying
physical
properties
clearly.
Case Studies in Thermal Engineering,
Год журнала:
2023,
Номер
53, С. 103883 - 103883
Опубликована: Дек. 9, 2023
Hybrid
nanofluids
have
received
remarkable
attention
due
their
promising
thermal
performance
compared
to
conventional
nanofluids.
The
use
of
hybrid
is
widely
found
in
the
pumping
power,
solar
collector,
electronic
components,
coolants
nano
devices,
and
engine
applications
etc.
Such
types
grabbed
attentionof
researchers
scientistswith
aim
understand
depththe
problems
involving
Therefore,
primary
objective
present
investigationis
investigatethe
nanofluid
consisting
asuspension
aluminum
alloys
(AA7075-AA7072)
methanol-base
fluid.
non-Newtonian
Williamson
fluid
flow
model
under
Lorentz
force,
irregular
heat
rise/fall
impact
past
incessantly
moving
thinneedleis
considered.
governingflow
equations
are
solved
by
bvp4c
solver.
Results
computed
for
governing
parameters
such
as
magnetic
field
parameter,
needle
thickness
Weissenberg
number,
volume
fractions,
constants.
Graphs
confirm
that
augmenting
values
number
lead
downfall
velocity
but
reverse
behavior
noticed
increasing
nanoparticles
fraction.
A
rise
temperature
has
been
magnitude
field,
rise/fallparameter,
fraction
a
decline
occurswithraising
theneedle
parameter.
Detailed
discussion
about
observed
variation
physical
properties
pertinent
effects
presented.
proposed
validated
comparison
with
previouslypublished
results.
Results in Engineering,
Год журнала:
2023,
Номер
20, С. 101531 - 101531
Опубликована: Окт. 20, 2023
In
this
study,
a
partial
velocity
slip
of
the
boundary
layer
flow
and
an
analysis
MHD
two-dimensional
ternary
hybrid
nanofluid
with
fluid
based
on
polymers
variable
thermal
conductivity
are
conducted.
On
stretching
sheet
convective
condition,
investigation
was
Model
equations
conditions
were
transformed
into
set
ODEs
in
order
to
study
flow.
The
resulting
system
solved
by
using
Runge-Kutta
fourth-order
method
conjunction
shooting
method.
A
numerical
done
determine
impact
several
key
factors
system's
heat
transfer
characteristics
field
velocity.
Computed
field's
properties
varying
these
physical
parameters,
then
graphically
displayed
results.
Additionally,
tables
covered
local
shear
stress
rate
respectively,
describe
flow's
resistance
motion
nanofluid.
For
thorough
comparison,
results
compiled
tables.
compared
data
already
available
for
regular
fluids,
it
discovered
that
there
very
high
degree
agreement
between
two
sets
This
raises
confidence
precision
their
computations.
explicit
formulas
have
been
derived
make
simple
understand
how
changes
temperature-dependent
nanoparticle
volume
fraction
affect
significant
such
as
sk.
fsdain
friction
rate,
nanofluids.
Modern Physics Letters B,
Год журнала:
2024,
Номер
unknown
Опубликована: Май 18, 2024
The
consequence
of
nanoparticle
aggregation
and
convective
boundary
condition
on
the
nanofluid
stream
past
co-axial
cylinder
with
radiation
impact
is
investigated
in
present
examination.
influence
linear,
nonlinear,
quadratic
thermal
flow
analyzed.
outer
stays
stable,
while
inner
deforms
horizontally
axial
direction,
allowing
fluid
to
flow.
By
using
similarity
variables,
governing
equations
are
transformed
into
ordinary
differential
(ODEs).
Subsequently,
Runge–Kutta–Fehlberg
fourth-fifth
order
(RKF-45)
method
employed
solve
reduced
ODEs.
upshot
several
nondimensional
terms
temperature
velocity
profiles
displayed
graphical
representation.
comparison
quadratic,
nonlinear
profile
illustrated.
upsurge
curvature
parameter
increases
profile.
increase
intensifies
improves
a
rise
values
parameter.
generates
energy
zone,
which
why
field
has
improved.
Biot
number
exhibits
an
increasing
response
layer
thickness.
linear
shows
better
heat
transfer
compared
radiation.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Июль 16, 2024
Abstract
The
influence
of
boundary
layer
flow
heat
transfer
analysis
on
hybrid
nanofluid
across
an
extended
cylinder
is
the
main
focus
current
research.
In
addition,
impressions
magnetohydrodynamic,
porous
medium
and
thermal
radiation
are
part
this
investigation.
Arrogate
similarity
variables
employed
to
transform
governing
modelled
partial
differential
equations
into
a
couple
highly
nonlinear
ordinary
equations.
A
numerical
approach
based
BVP
Midrich
scheme
in
MAPLE
solver
for
solution
set
resulting
obtained
results
compared
with
existing
literature.
effect
active
important
physical
parameters
like
Magnetic
Field,
Porosity
parameter,
Eckert
number,
Prandtl
number
dimensionless
velocity
energy
fields
via
graphs
tables.
profile
decreased
by
about
65%
when
magnetic
field
parameter
values
increases
from
0.5
1.5.
On
other
hand
increased
70%
profile.
enhanced
62%
Radiation
1.0
<
Rd
3.0.
model
may
be
applicable
real
life
practical
implications
employing
Engine
oil-SWCNTs-MWCNTs-TiO
2
nanofluids
cylinders
encompass
efficiency,
component
lifespan,
savings,
environmental
benefits.
This
kind
theoretical
used
daily
applications,
such
as
engineering
automobile
industries.