Author(s)

D. Bousmar, R. Scherer & Y. Zech

Abstract

A new one-dimensional unsteady flow model is presented for overbank flow computation in natural rivers. This model takes into account floodplains acting not only as a storage volume but also as a river element carrying a fraction of the total discharge and interacting with the main channel. The model is incorporated in a hydraulic software and simulations are compared with an experimental case found in the literature. 1 Introduction During flood events, river floodplains generally act as a storage volume contributing to peak flow mitigation. Nevertheless, if not too much obstructed by vegetation or constructions, they also can concur to the channel conveyance. In both cases, there w

Keywords