Dam break flow simulation by the pseudo-concentration method

Abstract

In this paper, dam break flow simulation is performed by the finite elements and the pseudo-concentration method. Solution domain is discretized by the space-time finite elements, while numerical schemes are stabilised by the Galerkin least squares method. The moving interface is modelled by the pseudo-concentration method and the simple interface reconstruction technique. Several cases of the broken dam problem are solved in order validate the numerical approach. The computed values of the reduction of water column height are compared with the experimental measurements. The simulated breaking wave phenomena shows that investigated numerical technique is capable of modelling moving interfaces undergoing large topological changes.