AIMS Mathematics,
Год журнала:
2024,
Номер
9(8), С. 20245 - 20270
Опубликована: Янв. 1, 2024
<abstract><p>Understanding
generalized
Couette
flow
provides
valuable
insights
into
the
behavior
of
fluids
under
various
conditions,
contributing
to
advancement
more
accurate
models
for
real-world
applications
including
tribology
and
lubrication,
polymer
food
processing,
water
conservation
oil
exploration,
microfluidics,
biological
fluid
dynamics
(blood
in
vessels),
electrohydrodynamic,
so
on.
The
present
study
provided
exact
asymptotic
solution
a
non-Newtonian
Jeffrey
horizontal
channel
immersed
saturated
porous
medium.The
governing
partial
differential
equations
were
transformed
dimensionless
form
using
similarity
technique
resulting
system
is
solved
by
Perturbation
technique,
as
well
method
separation
variables,
computed
on
MATLAB
(ode15s
solver).The
velocity
was
investigated
presented
through
2-D
3-D
graphs
two
cases
(ⅰ)
when
implication
magnetic
field
strengthened
(ⅱ)
magnitude
fixed
but
its
degree
inclination
altered.
first-order
chemical
reactions
thermal
radiation
also
considered.
Additionally,
effect
numerous
emerging
quantities
momentum,
temperature,
concentration
contours
characterizing
depicted
graphically
discussed.
Furthermore,
skin
friction
(at
different
angles
strength),
Nusselt
number,
Sherwood
number
time
intervals)
evaluated
at
both
boundaries
tabularly.
findings
revealed
that
there
decrease
profile
with
an
increasing
strength
field.
Moreover,
we
observed
increment
mass
flux
it
measured
over
channels.
Also,
outcomes
predicted
oscillatory
nature
shear
stress
boundries.</p></abstract>
Case Studies in Thermal Engineering,
Год журнала:
2024,
Номер
54, С. 104074 - 104074
Опубликована: Янв. 29, 2024
Magnetohydrodynamic
flow
of
nanomaterial
by
a
stretched
boundary
is
addressed.
Entropy
generation
examined.
Variable
fluid
characteristics
are
considered.
Buongiorno
thermal
enhancement
model
in
presence
Darcy-Forchheimer
expression
Nonlinear
radiation,
non-uniform
heat
source
and
dissipation
considered
expression.
Slip
conditions
chemically
reactive
Here
Maxwell
slip
velocity
Smoluchowski
temperature
under
consideration.
Impact
Arrhenius
activation
energy
deliberated.
Optimal
homotopy
analysis
approach
(OHAM)
utilized
for
construction
convergent
solutions.
Graphical
description
liquid
motion,
entropy
rate,
concentration
Higher
magnetic
variable
has
reverse
effect
on
rate
velocity.
seen
radiation
parameter.
dependent
conductivity
parameter
opposite
motion
rate.
Liquid
same
impact
both
porosity
parameters.
Larger
lead
to
decrease
distribution
while
holds
source.
Concentration
trend
through
random
thermophoresis
An
conductivity.
intensification
been
noticed
variable.
The
configuration
relevance
detecting
cooling
towers,
polymer
extrusion,
spinning
filaments,
cable
coating
metallurgical
processes.
Majamecha,
Год журнала:
2024,
Номер
6(1), С. 81 - 90
Опубликована: Июнь 21, 2024
Pengaruh
aliran
aksial
terhadap
Taylor
Vortex
Turbulent
dengan
perpindahan
kalor
teliti
menggunakan
metode
numerik.
Parameter
geometri
pada
penilitian
radius
ratio
0,
714
dan
aspect
10
bilangan
Reynold
melingkar
antara
2596
sampai
9087,
kemudian
Aliran
temperatur
silinder
dalam
(Ti)
yaitu
sebesar
50
°C
luar
(To)
adalah
90
.
Hasil
penelitian
menunjukan
bahwa
turbulen
Taylor-Couette
dicirikan
oleh
struktur
vortex
yang
kompleks
tidak
beraturan.
Koefisien
kondisi
konveksi
di
sekitar
lebih
tinggi
dibandingkan
sedangkan
untuk
diam
no
slip
condition.
Peningkatan
torsi
akibat
putaran
dipengaruhi
sel-sel
turbulen,
juga
menyebabkan
kenaikan
gesekan.
