Flow Simulation Models for WinDAM

Windows TM Dam Analysis Modules (WinDAM) is a set of modular software components that can be used to analyze overtopped earthen embankments and internal erosion of embankment dams. These software components are being developed in stages. The initial computational modules address routing of floods through the reservoir with dam overtopping and evaluation of the potential for vegetation or riprap to delay or prevent failure of the embankment. Subsequent modules incorporate dam breach analysis. Current work is underway to include analysis of internal erosion, non-homogeneous, zoned embankments, and the analysis of various other forms of embankment protection. The focus of this paper is on the development of new computational fluid dynamics (CFD) models from existing WinDAM models, and to determine the resulting flows using OpenFOAM. The next step will be to use these models to conduct coupled analysis at the particle-fluid level by coupling new erosion models based on the existing WinDAM erosion models with these CFD models.