Multi-cavitation states diagnosis of the vortex pump using a combined DT-CWT-VMD and BO-LW-KNN based on motor current signals
IEEE Sensors Journal,
Год журнала:
2024,
Номер
24(19), С. 30690 - 30705
Опубликована: Авг. 26, 2024
Язык: Английский
Energy performance prediction of centrifugal pumps based on adaptive support vector regression
Engineering Applications of Artificial Intelligence,
Год журнала:
2025,
Номер
145, С. 110247 - 110247
Опубликована: Фев. 14, 2025
Язык: Английский
Optimization design of centrifugal pump cavitation performance based on the improved BP neural network algorithm
Measurement,
Год журнала:
2024,
Номер
unknown, С. 116553 - 116553
Опубликована: Дек. 1, 2024
Язык: Английский
Cavitation and erosion effects on hydraulic performances of a submersible drainage pump
Alexandria Engineering Journal,
Год журнала:
2024,
Номер
113, С. 431 - 450
Опубликована: Ноя. 23, 2024
Язык: Английский
Experimental Visualization Study on Flow Characteristics Inside a Self-Priming Sewage Pump
Water,
Год журнала:
2025,
Номер
17(5), С. 735 - 735
Опубликована: Март 3, 2025
To
investigate
the
motion
patterns
of
flexible
fibers
inside
a
sewage
pump
and
their
impact
on
internal
flow
characteristics,
visualization
experiments
were
conducted
to
compare
when
transporting
water—0.3%
CMC
solution
0.3%
containing
under
different
operating
conditions.
The
results
showed
that
changes
in
rheological
properties
primarily
affected
fluid
viscous
dissipation.
Under
same
rotational
speed,
rate
increased
by
only
2.4%,
but
power
consumption
decreased
9.1%,
resulting
6.4%
improvement
efficiency.
curvature
distribution
within
impeller
channel
remained
stable.
Their
was
characterized
an
overall
reduction
velocity
region,
with
peak
decreasing
up
26.3%.
primary
cause
failure
due
tendency
repeatedly
accumulate
detach
at
tongue,
leading
blockages.
Fiber
length
had
more
significant
blockage
than
mass
concentration.
Язык: Английский
Dynamic evolution and energy transfer of toroidal energy transfer vortex in a vortex pump
Physics of Fluids,
Год журнала:
2025,
Номер
37(4)
Опубликована: Апрель 1, 2025
Vortex
pumps
are
widely
used
in
wastewater
treatment,
food
processing,
and
the
chemical
industry.
In
this
study,
combined
experimental
numerical
approaches
employing
rigid
vorticity
method
were
to
investigate
vortex
structures
flow
characteristics
within
pump
chamber.
Quantitative
analyses
based
on
velocity
moment,
entropy
production,
energy
distribution
conducted
elucidate
evolution
of
transfer.
Results
indicate
that
run-through
region
sustains
high-speed
flow,
whereas
circulating
generates
toroidal
transfer
(TETV).
Within
region,
TETV
regulates
direction
enhances
rotational
but
increases
localized
dissipation.
Furthermore,
is
characterized
by
periodic
dynamics,
while
demonstrates
pronounced
stability.
Analysis
transport
equation
underscores
critical
roles
curl
Coriolis
terms
transport.
These
findings
enhance
understanding
phenomena
pumps,
provide
a
theoretical
support
for
improving
efficiency
fluid
systems.
Язык: Английский
Newton–Raphson-based optimizer guided feature mode decomposition and Hilbert transform for pressure pulsation analysis in a tubular pump
Physics of Fluids,
Год журнала:
2025,
Номер
37(6)
Опубликована: Июнь 1, 2025
To
address
the
challenge
of
extracting
dynamic
features
from
nonlinear
and
non-stationary
pressure
pulsation
signals
(PPSs)
in
tubular
pumps
with
blade
attachments,
while
overcoming
issues
often
associated
traditional
PPS
processing
methods,
this
study
establishes
a
co-analytical
algorithm
by
integrating
Newton–Raphson-based
optimizer
guided
feature
mode
decomposition
Hilbert
transform
(HT).
The
principal
conclusions
derived
can
be
summarized
as
follows:
under
high
attachment
area
ratios
(BAARs),
disturbance
effect
attachments
on
flow
pattern
increases
at
Span
=
0.50
0.95
impeller
blades,
surface
velocity
fluctuates
obviously
these
positions.
At
monitoring
points
near
hub
middle
outlet,
PPSs
exhibit
sudden
lower
coefficients
over
time,
point
closer
to
rim
side
remain
relatively
stable.
Under
BAARs,
number
occurrences
maximum
amplitude
HT
spectrum
same
also
increases.
In
addition,
outlet
has
highest
average
standard
deviation
coefficient,
reaching
0.0344.
Язык: Английский
Advances in Flow Control Methods for Pump-Stall Suppression: Passive and Active Approaches
Energies,
Год журнала:
2024,
Номер
17(23), С. 6157 - 6157
Опубликована: Дек. 6, 2024
This
article
provides
a
comprehensive
review
of
key
approaches
to
suppressing
stall
flow
in
pumps,
offering
insights
enhance
pump
performance
and
reliability.
It
begins
by
outlining
the
formation
mechanisms
characteristics
stalls,
followed
an
in-depth
analysis
various
types.
The
discussion
highlights
passive
active
control
methods,
emphasizing
their
roles
phenomena.
Passive
flow-control
strategies,
including
surface
roughness,
grooves,
obstacles,
fixed
guide
vanes,
vortex
generators,
are
examined
with
focus
on
effectiveness
stall.
Similarly,
techniques,
such
as
jets
adjustable
explored
for
capacity
regulate
field
suppress
novelty
this
lies
its
exploration
methods
stall,
action
underlying
principles
formation.
findings
reveal
that
appropriate
measures
can
mitigate
laminar
separation
reduce
losses
associated
However,
careful
attention
must
be
given
optimal
arrangement
devices.
Finally,
limitations
current
implementations
combined
while
into
future
potential
advanced
technologies
regard
Язык: Английский