Dam Breach Modelling
Rift FD is a Finite Volume Dam Breach Model that was developed to facilitate modelling Newtonian and Non-Newtonian dam breach scenarios using Tailings Deposition Model results.
Rift FD is integrated into Rift TD but operates under a separate licence.
Use Rift FD to rapidly assess dam breach scenarios for various stages of tailings storage facility development.
Features
Rift FD's features include:
- Newtonian and Non-Newtonian friction models
- Detailed output, including flow velocities, flow depth, flow flux and Froude Number
- The HLL Riemann Solver to solve normal fluxes at control volume faces
- Linear reconstruction of gradients to improve model stability in distorted elements
- A multi-dimensional limiter to suppress non-physical oscillations near discontinuities
- An implicit scheme utilising a Taylor series expansion to solve the Friction terms
Model Output
The Finite Volume Model provides comprehensive output which includes:
- Flow Depth
- Flow velocities
- Flow flux
- Froude number
Saved dam breach surfaces can be loaded following the model run to view the beach extent.
Use the Digital Terrain Modelling Module to:
- Extract a String around the inundation extent
- Export Dam Breach surfaces to Google Earth
Dam Breach Surface
To prepare a Dam Breach surface:
- Load a Tailings Deposition Result surface
- Use the Digital Terrain Module to finalise the surface
