Rupro, breach model used by Cemagref during Impact project

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Presentation transcript:

Rupro, breach model used by Cemagref during Impact project André PAQUIER

Aims of the model To provide a maximum possible discharge hydrograph for dam-break wave propagation models Simple but with description of erosion process Overtopping or piping To be integrated in general hydrodynamic model as evolving structure

Description of Rupro Simplified longitudinal profile

Description of Rupro One cross section with evolving shape Piping Overtopping

Description of Rupro Solving coupled equations par Runge Kutta Bernoulli equation Meyer-Peter and Muller relation

Conclusions Validated for peak discharge Validated against physical model (Cadam) To be improved during Impact project Heterogeneous material Shape of breach, more cross sections For Impact project, sediment transport models 1D, 2D developed by Cemagref may also be used