International Journal of Modern Physics B,
Год журнала:
2022,
Номер
37(18)
Опубликована: Дек. 15, 2022
Numerical
simulation
was
offered
for
scrutinizing
the
freezing
of
water
within
complex
container.
The
container
has
elliptic
left
adiabatic
wall
while
right
is
sinusoidal
and
maintained
at
cold
temperature.
drawback
been
removed
by
adding
alumina
nanoparticles.
For
this
modeling,
different
ranges
volume
shape
factor
nanoparticles
have
scrutinized
incorporating
FEM.
configuration
grid
alters
with
change
time
verification
test
presented
which
proved
good
accuracy.
As
bigger
selected,
process
decline
less
than
4%
cylinder
percentage
augments
around
78.22%
blade
shape.
nanoparticle
fraction
increases,
required
declines
26.84%.
impact
in
view
25.74%
greater
that
International Journal of Modern Physics B,
Год журнала:
2023,
Номер
38(07)
Опубликована: Апрель 18, 2023
With
a
numerical
method,
the
discharging
process
within
container
with
double
complex
cold
surface
has
been
scrutinized
in
this
paper.
The
inherent
makes
conduction
as
main
mechanism
and
temperature
equation
includes
three
terms
two
of
them
are
time-dependent
which
was
discretized
by
means
implicit
technique.
Adding
nanoparticles
water
can
enhance
rate
heat
release
concentration
powders
their
shapes
affect
properties
nanomaterial.
Single
phases
for
estimating
features
nanomaterial
were
applied.
maximum
period
takes
326.95[Formula:
see
text]s
is
1.36
times
lower
than
case
pure
water.
Increasing
shape
factor
speed
its
impact
less
additives.
ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik,
Год журнала:
2022,
Номер
103(2)
Опубликована: Ноя. 28, 2022
Abstract
Adding
additive
with
nano‐sized
and
considering
porous
media,
new
container
has
been
generated
numerical
technique
was
employed
to
model
the
convection
process
of
cooling
four
lobed
surfaces
which
is
situated
inside
three
tanks.
Uniform
flux
considered
for
while
outer
surface
cold
wall.
With
neglecting
advection
term
due
employ
Darcy
law,
simpler
form
momentum
equations
appeared
coupled
source
magnetic
field.
Moreover,
mixture
testing
fluid
applied
incorporating
efficacy
shape
nanopowders.
Dispersing
nanoparticles
causes
augmentation
in
Nu
around
41.33%
because
augmenting
conductivity.
The
elevation
Ra
makes
increase
38.98%
absence
Ha
this
reaches
1.54%
existence
means
that
domination
conduction
appearance
MHD.
Augmenting
parameter
leads
rise
11.72%
increment
function
reduce
11.73%.
International Journal of Modern Physics B,
Год журнала:
2022,
Номер
37(18)
Опубликована: Дек. 15, 2022
Numerical
simulation
was
offered
for
scrutinizing
the
freezing
of
water
within
complex
container.
The
container
has
elliptic
left
adiabatic
wall
while
right
is
sinusoidal
and
maintained
at
cold
temperature.
drawback
been
removed
by
adding
alumina
nanoparticles.
For
this
modeling,
different
ranges
volume
shape
factor
nanoparticles
have
scrutinized
incorporating
FEM.
configuration
grid
alters
with
change
time
verification
test
presented
which
proved
good
accuracy.
As
bigger
selected,
process
decline
less
than
4%
cylinder
percentage
augments
around
78.22%
blade
shape.
nanoparticle
fraction
increases,
required
declines
26.84%.
impact
in
view
25.74%
greater
that
