Aerospace,
Journal Year:
2024,
Volume and Issue:
11(12), P. 1032 - 1032
Published: Dec. 17, 2024
Non-equilibrium
condensation
involves
intricate
physics,
making
it
crucial
to
thoroughly
investigate
the
factors
that
influence
it.
Understanding
these
is
essential
for
optimizing
system
performance
and
minimizing
negative
effects
associated
with
non-equilibrium
condensation.
This
study
focused
on
examining
impact
of
various
operational
conditions
in
a
saturated
mode
within
supersonic
nozzle.
The
operation
under
investigation
involved
pressures
25
kPa,
50
75
100
kPa.
Each
saturation
state
was
examined
assess
its
effect
parameters,
such
as
temperature,
pressure,
liquid
mass
fraction,
droplet
radius,
nucleation
rate,
Mach
number,
count.
A
consistent
pattern
emerged
across
all
samples.
As
gas
accelerated
through
converging
section
nozzle,
both
pressure
temperature
gradually
decreased.
However,
upon
reaching
throat
entering
divergent
section,
phenomenon
known
shock
occurred.
wave
caused
sudden
significant
spike
temperature.
Following
shock,
parameters
resumed
their
downward
trend
along
remaining
length
Interestingly,
increasing
initial
led
less
intense
shock.
Additionally,
raising
at
nozzle
inlet
resulted
larger
droplets
higher
concentration
flow.
By
quadrupling
from
substantial
106.9%
increase
radius
9.65%
fraction
were
observed
outlet.
Chemical Product and Process Modeling,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 23, 2024
Abstract
To
get
better
industrial
equipment,
one
must
understand
the
different
phenomena
within
a
machine.
Non-equilibrium
condensation
is
of
natural
happening
in
process,
thereby
affecting
flow
behavior;
concept
vital
understanding
and
optimizing
machinery
applied
industries.
The
present
investigation
focuses
on
surface
heating
method,
more
precisely
using
constant
heat
flux
context
NEC
inside
supersonic
nozzle.
results
indicate
that
method
can
delay
droplet
nucleation
growth
However,
this
should
be
considered
to
limit
due
raise
temperature
at
nozzle
wall.
rise
has
reduced
Liquid
Mass
Fraction
(LMF)
LMF
outlet
center
line
determined
0.075,
0.072,
0.068
for
adiabatic
condition,
200
kW/m
2
flux,
400
respectively.
also
influences
pattern.
With
an
increase
shock
wave
shifted
downstream,
decreasing
its
intensity.
Aerospace,
Journal Year:
2024,
Volume and Issue:
11(12), P. 1032 - 1032
Published: Dec. 17, 2024
Non-equilibrium
condensation
involves
intricate
physics,
making
it
crucial
to
thoroughly
investigate
the
factors
that
influence
it.
Understanding
these
is
essential
for
optimizing
system
performance
and
minimizing
negative
effects
associated
with
non-equilibrium
condensation.
This
study
focused
on
examining
impact
of
various
operational
conditions
in
a
saturated
mode
within
supersonic
nozzle.
The
operation
under
investigation
involved
pressures
25
kPa,
50
75
100
kPa.
Each
saturation
state
was
examined
assess
its
effect
parameters,
such
as
temperature,
pressure,
liquid
mass
fraction,
droplet
radius,
nucleation
rate,
Mach
number,
count.
A
consistent
pattern
emerged
across
all
samples.
As
gas
accelerated
through
converging
section
nozzle,
both
pressure
temperature
gradually
decreased.
However,
upon
reaching
throat
entering
divergent
section,
phenomenon
known
shock
occurred.
wave
caused
sudden
significant
spike
temperature.
Following
shock,
parameters
resumed
their
downward
trend
along
remaining
length
Interestingly,
increasing
initial
led
less
intense
shock.
Additionally,
raising
at
nozzle
inlet
resulted
larger
droplets
higher
concentration
flow.
By
quadrupling
from
substantial
106.9%
increase
radius
9.65%
fraction
were
observed
outlet.
