1. 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

2. www.themegallery.com Company Logo OUTLINE Introduction Green Team Introduction Watershed Modeling Tools 1 2 3 Future Work Plan Future Work Plan 4

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4. www.themegallery.com Company Logo INTRODUCTION GREEN TEAM Prof. NGUYEN THE Hung Jean, Girard Université Nice Sophia Antipolis Oriol, Raurell Universitat Politècnica de Catalunya Shi, Yundi Qingdao Technological University Sun-Ah, Lee Incheon University Thang, Nguyen University of Danang Members Leader: Advisor: Sinae, Chae Incheon University Sophie, Klose Brandenburgische Technische Universität Cottbus

5. www.themegallery.com Company Logo INTRODUCTION GREEN TEAM

6. www.themegallery.com Company Logo INCHEON-GYO WATERSHED

7. www.themegallery.com Company Logo INCHEONINCHEON 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

8. www.themegallery.com Company Logo Study area Gaja WWTP City Hall Gansuk station Juan station Incheon Gyo Pump Station Coastlin e before 1984 Study Area Yello w Sea Incheon Gyo Pump station Reclamation Area INCHEON-GYO WATERSHED Total area: 34 km 2 The study area has been reclaimed from the sea in 1985 (blue circle) Reclamation area used for industry &residences Culvert slope is very mild

9. INCHEON-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 www.themegallery.com Company Logo

10. www.themegallery.com Company Logo Modeling Tools

11. www.themegallery.com Company Logo INTRODUCTION Arc Gis MODEL Geographic Information System (GIS) Digital Elevation Map (DEM) Triangulated Irregular Network (TIN)

12. ASCII www.themegallery.com Company Logo DIGITAL ELEVATION MAP (DEM) DEM TIN File

13. www.themegallery.com Company Logo DIGITAL ELEVATION MAP (DEM) Purpose of DEM  Essential piece of information in determining the flow direction A B’ B A’ A B B’

14. www.themegallery.com Company Logo INTRODUCTION 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

15. www.themegallery.com Company Logo PROGRAM 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

16. www.themegallery.com Company Logo INTRODUCTION SOBEK MODEL

17. 1D 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. www.themegallery.com Company Logo

18. www.themegallery.com Company Logo 1 D : River or pipes 2 D : Flooding plain INTERACTION 1D - 2D ! SOBEK: interaction 1D-2D

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20. www.themegallery.com Company Logo FUTURE 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 !

21. Results: www.themegallery.com Company Logo 1D and 2D Maps of: -Velocity of the water -Water Level

22. How to reduce the flooding? Study and modify :  Sewerage slopes  Sewerage diameter  Others www.themegallery.com Company Logo Re-run the model!

23. Conclusions 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 ! www.themegallery.com Company Logo

24. www.themegallery.com Company Logo Thank you ！