Author(s)

L.H.C. Chua, F. Merting & K.P. Holz

Abstract

This paper presents the results of an engineering study on flood inundation, carried out for the Polder Mehrum area. Mehrum is situated along the River Rhine, in Germany. The study investigates the inundation process in the polder area, resulting from a dyke breach due to overtopping. The flow field is simulated using a two-dimensional hydrodynamic model, solving the shallow water equations by the finite element method. The computational mesh is constructed from (i) measured river bathymetry data, taken 100m apart; and (ii) topographical data, provided on a 10m x 10m raster grid, for the polder area. Flow data is obtained from two gauging stations, Ruhrort and Wesel, located 33km apart and are used as boundary conditions for model calibration and verification purposes. In addition, since the downstream boundary cond

Keywords