Mixed convective heat transfer in a square cavity filled with power‐law fluids under active flow modulation
Heat Transfer,
Год журнала:
2024,
Номер
53(8), С. 4422 - 4447
Опубликована: Авг. 6, 2024
Abstract
The
current
study
presents
a
computational
investigation
of
mixed
convective
heat
transfer
in
square
enclosure
containing
power‐law
fluid.
An
active
flow
modulator
is
employed
the
form
flat
plate
with
negligible
thickness,
and
convection
achieved
through
clockwise
rotation
plate.
modeled
by
incorporating
moving
mesh
technique.
solution
then
obtained
applying
Finite
Element
Technique
under
arbitrary
Lagrangian–Eulerian
framework.
Numerical
validation
performed
contemporary
research
studies
consisting
rotating
plates
to
justify
accuracy
present
study.
conducted
at
constant
Prandtl
number
Pr
=
1.0
Reynolds
Re
500
while
varying
index
(0.6
≤
n
1.4)
Richardson
(0.1
Ri
10.0).
results
have
been
presented
terms
thermal
fields,
spatially
averaged
Nusselt
number,
power
consumption
plate,
velocity
temperature
profile
enclosure.
numerical
findings
indicate
that
higher
encourages
transfer.
For
shear‐thinning
fluid,
37%
augmentation
observed
comparison
Newtonian
fluid
10.
However,
case
shear‐thickening
performance
was
reduced
21.13%.
Small
oscillations
are
naturally
dominated
for
fluids,
but
none
or
fluids.
In
addition,
demonstrate
has
positive
impact
on
fluids
(
>
1)
an
adverse
effect
<
1).
Furthermore,
decreases
as
increases,
it
becomes
negative
beyond
due
increase
natural
strength.
Язык: Английский
Thermo-hydraulic Perspectives of non-Newtonian channel flow with Active Flow Modulation: A CFD study
Journal of Non-Newtonian Fluid Mechanics,
Год журнала:
2025,
Номер
unknown, С. 105416 - 105416
Опубликована: Март 1, 2025
Язык: Английский
Computational modelling and analysis of heat transfer enhancement in straight circular pipe with pulsating flow
International Journal on Interactive Design and Manufacturing (IJIDeM),
Год журнала:
2024,
Номер
19(3), С. 1951 - 1969
Опубликована: Июнь 4, 2024
Язык: Английский
Effects of oscillated wall on the turbulent structure and heat transfer of three-dimensional wall jet
Fluid Dynamics Research,
Год журнала:
2024,
Номер
56(5), С. 055502 - 055502
Опубликована: Сен. 12, 2024
Abstract
In
this
research,
a
three-dimensional
turbulent
wall
jet
was
modeled
using
an
Improved
Delayed
Detached
Eddy
Simulation
to
examine
its
flow
and
thermal
properties.
The
accuracy
of
the
simulation
confirmed
by
comparing
key
characteristics
with
experimental
data.
study
involved
introducing
oscillating
hot
within
computational
domain
observe
their
effects
on
behavior
turbulence
structure.
OpenFOAM
v2012
utilized
for
simulations
based
3D
channel
design.
structure
exhibited
distinct
separated,
small-scale,
large-scale
domain.
findings
indicated
that
reducing
height
increased
Nusselt
number,
positioning
near
core
also
number.
Additionally,
increasing
frequency
amplitude
resulted
in
higher
These
results
contribute
deeper
understanding
fluid
physics
specific
scenario
can
enhance
knowledge
fields
solid
interaction.
analysis
revealed
lower
created
elongated
structures,
placing
at
end
had
less
impact
smoothing
structures
due
presence
very
strong,
large
structures.
Язык: Английский