Numerical simulation of diameter-to-depth ratio on hydrodynamics in four tank structures
Chenxu Zhao,
No information about this author
Shupeng Du,
No information about this author
Wei Sun
No information about this author
et al.
Ocean Engineering,
Journal Year:
2025,
Volume and Issue:
330, P. 121262 - 121262
Published: April 20, 2025
Language: Английский
Vortex identification based on the Liutex method and its effect on fish passage upstream
Chunying Shen,
No information about this author
Rui-guo Yang,
No information about this author
Xiaotao Shi
No information about this author
et al.
Journal of Hydrodynamics,
Journal Year:
2024,
Volume and Issue:
36(1), P. 130 - 141
Published: Feb. 1, 2024
Language: Английский
Numerical Simulation Study of an Artificial Percolation Riverbed and Its Hydraulic Characteristics under Different Reynolds Numbers
Water,
Journal Year:
2024,
Volume and Issue:
16(19), P. 2791 - 2791
Published: Sept. 30, 2024
The
direct
extraction
of
clear
water
from
a
sandy
river
is
difficult
task
and
can
only
be
achieved
through
specific
engineering
measures.
This
paper
proposes
an
artificial
percolation
riverbed
structure
for
extracting
clean
rivers,
using
numerical
simulation
to
study
the
flow
field
distribution
characteristics
under
conditions.
main
conclusions
are
as
follows:
When
vortex
tube
opening
rate
1.4%,
with
or
without
hole
has
little
influence
on
in
riverbed,
purpose
while
constructing
helical
field.
axial
velocity
circumferential
cross-section
different
Reynolds
numbers
show
low-flow
close
center
tube,
high-flow
side-wall
area.
average
trend
increasing
then
decreasing
along
axis
direction
sediment
transport
flume.
mean
toward
flume
both
decreasing.
At
junction
flume,
there
obvious
pressure
changes,
changes
drastically
same
horizontal
line.
Along
bottom
line
at
obviously
greater
than
that
mainly
concentrated
vicinity
maximum
value
intensity
generally
occurs
With
increase
number,
overall
trend,
more
complex.
helps
elucidate
it
provides
reference
basis
future
riverbeds
rivers.
Language: Английский
Analysis of Two-Dimensional Hydraulic Characteristics of Vertical-Slot, Double-Pool Fishway Based on Fluent
Shengzhe Qi,
No information about this author
Chenghua Fu,
No information about this author
Meiling Xie
No information about this author
et al.
Water,
Journal Year:
2024,
Volume and Issue:
16(12), P. 1695 - 1695
Published: June 14, 2024
Research
shows
that
the
novel
vertical-slot,
double-pool
fishway
can
reduce
flow
velocity
at
vertical
slots
of
fishway,
enhance
efficiency
water
in
chambers,
and
increase
fish
passage
area
migratory
corridor
for
fish.
Utilizing
Fluent,
two-dimensional
three-dimensional
models
were
established,
numerical
simulation
analysis
was
conducted
on
their
hydraulic
characteristics.
The
results
indicate
cross-section
middle
slot
pool
decreases
horizontally
from
left
to
right
increases
vertically
top
bottom,
with
similar
distribution
patterns
different
lines.
conditions
characteristics
surface,
middle,
bottom
layers
are
similar,
mainly
characterized
by
planar,
flow.
error
between
trajectory
main
maximum
value
is
within
10%.
retains
planar
binary
traditional
vertical-slot
fishways.
be
analogized
uniformization
simulation,
providing
support
study
its
presenting
a
theoretical
basis
structural
design
construction
Language: Английский
Algorithm to Generate Liutex Core Lines Based on Forward Liutex Magnitude Gradient Lines
IntechOpen eBooks,
Journal Year:
2023,
Volume and Issue:
unknown
Published: Dec. 4, 2023
Vortex
definition
and
identification
are
extremely
important
for
the
study
of
fluid
dynamics
research.
Liutex
is
a
newly
proposed
concept
that
correctly
represents
vortex.
vector
whose
direction
local
rotation
axis
magnitude
twice
angular
speed.
To
identify
unique
structure
vortex,
method
known
as
Core
Line
has
been
developed,
which
displays
rotational
core
However,
original
manual
method,
not
practical
real
application,
an
automatic
algorithm
required
usage.
Xu
et
al.
by
selecting
best
line
from
group
candidate
lines,
progress.
In
this
chapter,
another
perspective
to
solve
problem,
new
introduced
based
on
forward
gradient
lines.
Since
lines
have
feature
they
advance
maximums,
route
will
still
result
in
line,
avoids
process
find
line.
This
achieved
some
success
Lambda
vortex
early
boundary
layer
transition.
Language: Английский