Company LOGO Sun-Ah, Lee Sinae, Chae Sophie, Klose Shi, Yundi Jean, Girard Oriol, Raurell Thang,...
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Transcript of Company LOGO Sun-Ah, Lee Sinae, Chae Sophie, Klose Shi, Yundi Jean, Girard Oriol, Raurell Thang,...
Company
LOGO
Sun-Ah, Lee Sinae, Chae
Sophie, Klose Shi, Yundi
Jean, Girard Oriol, Raurell Thang, Nguyen
FLOOD ANALYSIS STUDY AT INCHEON GYO WATERSHED
GREEN TEAM
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OUTLINEOUTLINE
Introduction Green Team
Introduction Watershed
Modeling Tools
11
22
33
Future Work PlanFuture Work Plan44
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INTRODUCTION GREEN TEAM
Prof. NGUYEN THE Hung
Jean, GirardUniversité Nice Sophia
Antipolis
Jean, GirardUniversité Nice Sophia
Antipolis
Oriol, RaurellUniversitat Politècnica de Catalunya
Oriol, RaurellUniversitat Politècnica de Catalunya
Shi, YundiQingdao Technological
University
Shi, YundiQingdao Technological
University
Sun-Ah, LeeIncheon University
Sun-Ah, LeeIncheon University Thang, Nguyen
University of Danang
Thang, NguyenUniversity of Danang
MembersMembers
Leader:
Advisor:
Sinae, Chae Incheon University
Sophie, KloseBrandenburgische
Technische Universität Cottbus
Sophie, KloseBrandenburgische
Technische Universität Cottbus
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INTRODUCTION GREEN TEAM
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INCHEON-GYO WATERSHEDINCHEON-GYO WATERSHEDINCHEON-GYO WATERSHEDINCHEON-GYO WATERSHED
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INCHEONINCHEONINCHEONINCHEON
• Located in the mid-west Korea peninsula near Yellow Sea
• With both international port and international airport
• The third biggest city in Korea
• Population : 2,730,000
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Study area
Gaja WWTP
City HallGansuk station
Juan station
Incheon Gyo
Pump Station
Coastline before
1984
Study Area
Yellow Sea
Incheon Gyo
Pump station
Reclamation Area
INCHEON-GYO WATERSHEDINCHEON-GYO WATERSHED
• Total area: 34 km2
• The study area has been reclaimed from the sea
in 1985 (blue circle)
• Reclamation area used for industry &residences
• Culvert slope is very mild
INCHEON-GYO WATERSHEDINCHEON-GYO WATERSHEDINCHEON-GYO WATERSHEDINCHEON-GYO WATERSHED
• Linked with the sea through two retention ponds
• Complicated drainage network
• There are 4 main drainage networks
• One drainage network is linked with the sea directly
• The other networks are linked with the reservoir
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Modeling ToolsModeling Tools
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INTRODUCTION Arc Gis MODELINTRODUCTION Arc Gis MODEL
Geographic Information System (GIS)
• Digital Elevation Map (DEM)
• Triangulated Irregular Network (TIN)
ASCII
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DIGITAL ELEVATION MAP (DEM)DIGITAL ELEVATION MAP (DEM)
DEM
TIN File
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DIGITAL ELEVATION MAP (DEM)DIGITAL ELEVATION MAP (DEM)
Purpose of DEM Essential piece of information in
determining the flow direction
A
B’B
A’
A’A
B
B’
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INTRODUCTION MOUSE MODELINTRODUCTION MOUSE MODEL
Features Analysis urban drainage and sewer water
1 Dimensional Program for the Open
Channel
Node and Pipe → represented Point and
Line
Possible to analyze the Unsteady Flow
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PROGRAM COMPOSITIONPROGRAM COMPOSITION
2Part Concept
SURFACE RUNOFF Module• Time-Area Method
• Kinematic Wave, Non- Linear reservoir
• linear reservoir
• Unit Hydrograph Surface Runoff model, UHM
PIPE FLOW Module
• Kinematic Wave Equation
• Diffusion Wave Equation
• Dynamic Wave Equation
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INTRODUCTION SOBEK MODEL
1D vs 2D MODELS1D vs 2D MODELS
1D models: good in modeling rivers, pipes that have a 1D dimension
2D models : Good in modeling fooding plains and river confluences and edifications.
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• 1 D : River or pipes
• 2 D : Flooding plain
INTERACTION 1D - 2D !
SOBEK: interaction 1D-2D
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FUTURE WORK PLANFUTURE WORK PLAN
OPTION 2: Increment the manning coefficient of the buildings:
- Reduce the velocity of the water almost to 0.
- Takes in to account the volume of water entering to the buildings
MORE PRECISE SOLUTION !
Results:Results:
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1D and 2D Maps of:
-Velocity of the water
-Water Level
How to reduce the flooding?How to reduce the flooding?
Study and modify :
Sewerage slopes
Sewerage diameter
Others
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Re-run the model!
Conclusions of the work doneConclusions of the work done
Working in group is more difficult if is overseas.
Next days we have the opportunity to work together in the same table so..
we are going to learn from each other and..
THE RESULTS WILL IMPROVE !
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Thank you!Thank you!