Author(s): Davood Farshi; Roland Fah; David Vetsch; Renata Muller
Linked Author(s): Davood Farshi, David Vetsch
Keywords: Unsteady flow; Shallow water; Unstructured mesh; Riemann solver; Finite volume method; Moving boundary
Abstract: Numerical modeling of shallow water flow in two dimensions applied to dam break test cases is presented in this work. The model equation set used for this purpose is the twodimensional shallow water equations. These equations were discretized using an approach based on the cell-centered finite volume method on an unstructured Delaunay triangle mesh. The Exact Riemann solver was utilized for the flux estimation across the edges of the cells. Particular attention was paid to the moving boundary associated with wetting-drying process by using a novel method for the gravity source term. Special treatment of the friction source term was adopted. Comparisons of numerical results are in good agreement with the measured data for the test cases.
Year: 2005