Environmental Claims Journal,
Journal Year:
2023,
Volume and Issue:
35(4), P. 402 - 430
Published: Oct. 2, 2023
Traditionally,
pumping
efficiency
and
pressure
control
have
been
studied
as
separate
disciplines
in
water
companies,
with
a
focus
on
optimizing
pump
operation
managing
leakage.
Present-day
siphons
are
frequently
outfitted
variable
speed
drives;
consequently,
the
siphon
outlet
tension
could
be
constrained
by
controlling
speed.
If
there
upstream
from
tension-decreasing
valve
(PRV)
no
moderate
tank,
PRV
gulf
strain
diminished
changing
siphoning
piece
of
organization.
In
addition,
when
operation,
consideration
should
given
to
impact
pressure-dependent
leakage
resulting
schedules.
Thus,
this
article
considers
streamlining
plans
for
complex
huge-scope
circulation
organizations
(WDN).
The
review
takes
care
booking
issue,
which
tries
acquire
timetable
on/off
switches
each
that
limits
energy
power
cost,
taking
into
account
consumed
functioning
siphons.
This
schedule
generates
flow
through
network
it
has
satisfy
demand
all
nodes,
conserve
energy,
minimize
head
loss.
To
execute
safeguard
clean
assets,
functional
improvement
WDSs
consider
both
upkeep
costs
while
deciding
ideal
valves.
point
examination
is
create
confirm
an
model
can
work
effectiveness
equal
frameworks.
Accordingly,
research
proposed
mathematical
shaft
consumption
using
quadratic
polynomial
fitting.
Additionally,
investigated
potential
application
Variable
Speed
Pumps
(VSPs)
improve
reliability,
leakage,
electrical
Water
Distribution
Networks
(WDNs).
Circulation
Frameworks
(WDSs)
hybrid
binary
dragonfly-enhanced
Particle
Swarm
Optimization
(PSO)
algorithm
joint
scheduling
problems
WDS.
optimal
conducted
based
three
different
tariffs.
Matlab
programming
climate
utilized
demonstrate
strategy
assistance
EPANet
tool
compartment.
Analyzing
range
scenarios
varying
time
frames,
operational
limitations,
changes,
WDN
solution
showed
its
capability
efficiently
address
optimization
challenges
tailored
diverse
needs.
Physics of Fluids,
Journal Year:
2024,
Volume and Issue:
36(1)
Published: Jan. 1, 2024
In
order
to
solve
the
blockage
effect
and
energy
dissipation
phenomenon
caused
by
cavitation
in
low-pressure
vortex
core
region,
this
paper
analyzes
spatial
evolution
of
vorticity
intensity
turbulent
kinetic
under
different
conditions
based
on
Wray–Agarwal
(WA)
model.
First,
tip
leakage
flow
characteristics
are
studied,
is
analyzed,
then
distribution
blade
region
finally,
transport
analyzed.
It
found
that
rate
less
affected
leakage,
there
a
strong
interaction
between
at
leading
edge
trailing
edge,
separation
vortices
low-speed
regions
formed
end-wall
cause
passage.
Low
pressure
causes
cover
most
suction
surface,
inhibiting
formation
development
vortices.
The
range
high
almost
same
as
high-vorticity
positive
correlation
two
intensities.
Severe
outlet
passage
develop
radial
axial
directions
impeller,
which
increases
loss.
change
mainly
reflected
expansion
contraction
term,
Coriolis
force
term
plays
dominant
role
process.
This
provides
reference
for
further
improving
performance
mixed-flow
pumps.
Physics of Fluids,
Journal Year:
2024,
Volume and Issue:
36(4)
Published: April 1, 2024
Mixed-flow
pump
is
a
general
purpose
hydraulic
machinery
in
many
fields
of
fluid
transport
for
its
advantages
wide
efficient
operation
flow
rate
range,
but
stability
restricted
by
cavitation.
To
obtain
the
cross
effect
cavitation
and
on
pressure
pulsation,
high-precision
experimental
system
was
first
established
to
monitor
signals
at
four
key
positions,
obtaining
their
time
domain;
second,
based
this
tested
results,
frequency
domain
analysis
technique
continuous
wavelet
transform
adopted
capture
temporal
evolution;
third,
coherence
value
further
diagnose
development
speed
different
spatial
positions.
Primary
findings
are
as
follows:
(1)
secondary
peaks
induced
generated
discrete
disturbance
low-frequency
amplitudes
shaft
blade
passing
were
both
increased,
with
worse
continuity.
(2)
Under
1.0
QBEP,
mixed
had
best
anti-cavitation
performance.
0.8
internal
pattern
easily
be
disturbed
flow,
while
that
under
1.2
QBEP
fastest
speed.
(3)
action
unstable
potential
within
field
near
rotor–static
interface
downstream,
close
exchange
between
bubbles
mainstream;
thus,
pulsation
inside
volute
became
more
sensitive
development.
Sustainability,
Journal Year:
2025,
Volume and Issue:
17(5), P. 1825 - 1825
Published: Feb. 21, 2025
The
use
of
pumps
in
water
distribution
networks
is
very
useful
when
there
a
need
for
additional
pressure
head.
However,
the
functioning
can
be
influenced
by
presence
private
storage
tanks
network,
which
alters
way
users
draw
due
to
their
compensation
ability.
This
condition
common
areas
affected
historical
scarcity
resources
or
intermittent
supply
(Mediterranean
Area,
Arabian
Peninsula,
etc.).
paper
studies
effects
on
performance
network
model,
considering
different
retention
times
and
evaluating
possible
background
leakages.
A
sample
two
real
UAE
will
analyzed.
results
show
that
low
time
(i.e.,
12
h)
leads
decrease
pump
running
time,
thus
lowering
energy
consumption
carbon
footprint,
gives
sustainable
solution.
These
results,
therefore,
suggest
design
models
crucial
economic
importance,
as
well
efficient
designs
systems.
Irrigation and Drainage,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 3, 2025
ABSTRACT
To
examine
the
vortex
and
wear
characteristics
of
high‐speed
centrifugal
pumps,
a
field
force
coupling
method
was
employed
via
Application
Programming
Interface
(API)
Engineering
Discrete
Element
Model
(EDEM)
software
Field
Data
Manager
functions.
This
approach
seeks
to
analyse
variations
in
patterns
across
distinct
flow
fields
pump
components
subjected
different
particle
sizes.
The
results
reveal
that
with
increasing
rates,
weak
within
diminishes,
whereas
strong
intensifies.
vorticity
volute
decreases
by
12%,
at
front
rear
covers,
as
well
impeller
blades,
increases
11%
25%,
respectively.
Using
Q
criterion,
λ
2
regularized
helicity,
changes
were
precisely
captured.
structure
predominantly
consists
separation
blade
region
inlet
outlet
pipelines.
Vortex
formation
initiates
leading
edge
propagates
toward
pipes
other
components.
An
analysis
normal
radial
energies
demonstrated
sliding
friction
particles
principal
mechanism
pump.
endures
most
substantial
wear,
primarily
its
section.
As
rate
increases,
amount
on
progressively
diminishes.
With
radius,
regions
severe
extend
from
Volute
Section
VIII
VII,
becomes
more
pronounced.
Physics of Fluids,
Journal Year:
2025,
Volume and Issue:
37(4)
Published: April 1, 2025
An
improved
delayed
detached-eddy
simulation
was
performed
on
a
marine
propeller
with
notched
blades
using
an
unstructured
grid
consisting
of
52.5
×
106
cells.
This
study
focuses
further
revealing
the
mechanisms
by
which
different
numbers
influence
wake
instability.
The
results
show
that
increase
in
number
notches
intensifies
mutual
inductance
effect
and
accelerates
instability,
significantly
alters
momentum
transfer
process
anisotropy
turbulence
wake.
earlier
diffusion
mixing
lead
to
more
isotropic
state
far-field
emphasizes
specific
processes
kinetic
energy
transport
generation
analyze
role
notch
coherence,
quantifying
impact
instability
caused
configurations
process.
Increasing
leads
pronounced
reduces
lowers
levels
