Numerical Simulation of Two-Dimensional Dam-Break Flows

The present study presents a second order accurate implicit numerical scheme for the calculation of unsteady, two-dimensional depth averaged, free-surface flow problems. The introduction of a nonorthogonal, boundary-fitted coordinate system allows the accurate simulation of irregular geometries. The model is used to analyze dam-break flow in a converging-diverging flume. The computed results are compared with measurements and satisfactory agreement is achieved.