Author(s): Zainab Mohamed Yusof; David M. Hargreaves; Herve P. Morvan
Linked Author(s):
Keywords: No Keywords
Abstract: This paper presents the development of an embankment breaching approach based on a Computational Fluid Dynamics (CFD) model, with an eventual view to predicting the breach formation and the resulting overflow hydrograph. Here, the embankment is modelled as a porous medium governed by a generalised form of Darcy’s law. The erosion is prescribed by systematically decreasing the porous resistance of the embankment in those areas where erosion is taking place. The paper presents the results from an eroding embankment, which a direct comparison with the experiments detailed in Hager and Unger (2006). All simulations are conducted in 2D, using the Realizable k-? model and the Volume of Fluid (VOF) multiphase model to identify the position of the free surface.
Year: 2010