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Towards the Intelligent
Control of River Flooding
1
Arturo Leon
School of Civil and Construction Engineering
Oregon State University
X Congreso Latinoamericano de Estudiantes de Ingenieria Civil -
XXII Congreso
Nacional de Estudiantes de Ingenieria Civil del Per, August 4-8,
2014.
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SCADA-type
control
Wetland
s
Rain
Siphonsystem
Controlled
release
DSSControl
center
SCADA-type
control
Reservoir
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Need of Real-time Control in RiverManagement
3
Q
t
Availablestorage
Dam C
Dam B
Dam A
High risk
Medium riskLow risk
Reach 1
Reach 2
Reach 3
Reach 4
Medium risk
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SiphonSystem
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Optimization component
1. Hybrid (GA + local search methods)
2. Parallelized optimization
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Hydraulics component
Hydraulic Performance Graph (HPG)
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QrightQdow
n
Qup
Qleft
x
y
x
y
Grid
Interface
Inundation Modeling
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Rating Performance Graph
A different RPG for each vertical
position of gates.
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THEEXPANDEDSMALLSCALEPHYSICALMODEL 2014 SOC
9/19/2014
Digital projection of physical model of Mississippi
River at Louisiana State University (LSU)
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Three-dimensional router
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THEEXPANDEDSMALLSCALEPHYSICALMODEL 2014 SOC
9/19/2014
Guinea Pig Model
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THEEXPANDEDSMALLSCALEPHYSICALMODEL 2014 SOC
Scaling
Geometric
Horizontal - 1:6000
Vertical -1:400
Distortion - versus 15
Froude scaling
Shield Scaling / Incipient Motion
Re scaling (For conditions with suspended sediment) 7000
12,000
Domain
14,000 Sq. mi9/19/2014
The Physical Model at LSU
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Geometric Scaling
Lr=
Lp
Lm
yr=
yp
ym
=
Lr
yr=
6000
400=15
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Limits of Dynamic Scaling
Exact similitude of all force ratios in hydraulic models
isimpossible except at full scale.
Reynolds-number independence. As long as Re is high enough in
both the prototype and experimental
systems, its exact value does not strongly influence the
overalldynamics.
At a minimum, high enough is taken to mean that the small-scale
flow
is fully turbulent.
Rem=4 V
m
Rm
Rem 7500 10,000
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3D Modeling
Distortion Horizontal scaleVertical
scaleFlow rate (ft3/s)
15 6000 400 0.017
7.5 3000 400 0.034
5 2000 400 0.051
Numerical computations were carried out with three distortion
scales of 15, 7.5 and 5.
A flow rate of ~800,000 ft3/s in the prototype was scaled for
and used as an inflow
boundary condition.
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3D ModelingHorizontal Velocity
Profiles
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3D ModelingHorizontal
Velocity
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3D ModelingVertical Velocity
Profiles
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3D Modeling - velocity magnitudes
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3D ModelingReynoldsstresses
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3D Modelingvorticity
magnitude
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Many thanks for your attention!
Contact:Arturo Leon
School of Civil and Construction Engineering,Oregon State
UniversityE-mail:[email protected] Web
page:http://web.engr.oregonstate.edu/~leon
22
mailto:[email protected]://web.engr.oregonstate.edu/~leonhttp://web.engr.oregonstate.edu/~leonmailto:[email protected]
