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Hydrology-Hydraulics Research Unit, Lyon, France 1 Sediment transport models used by Cemagref during Impact project André PAQUIER.

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Presentation on theme: "Hydrology-Hydraulics Research Unit, Lyon, France 1 Sediment transport models used by Cemagref during Impact project André PAQUIER."— Presentation transcript:

1 Hydrology-Hydraulics Research Unit, Lyon, France 1 Sediment transport models used by Cemagref during Impact project André PAQUIER

2 Hydrology-Hydraulics Research Unit, Lyon, France 2 Aims of the models l Rubarbe:1-D model: bed-load by sediment discharge limited by transport capacity, evolution of main bed geometry during floods l Rubar20TS: 2-D model: suspended load by concentration, exchanges with bottom controlled by equilibrium concentration, evolution of flood plain deposits during floods

3 Hydrology-Hydraulics Research Unit, Lyon, France 3 1-D model RUBARBE

4 Hydrology-Hydraulics Research Unit, Lyon, France 4 Example of use of MPM

5 Hydrology-Hydraulics Research Unit, Lyon, France 5 2-D model RUBAR20TS

6 Hydrology-Hydraulics Research Unit, Lyon, France 6 Ptuj Lake

7 Hydrology-Hydraulics Research Unit, Lyon, France 7 Conclusions l 1-D model « validated » for usual floods in rivers and for some specific cases (flushing gate) l 2-D model « validated » for deposits in reservoirs l Complementary models, »both relatively simple but including (very) unsteady flow l Use possible for breaching, near field, far field?

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