The model is run using the finite-element package, . Many other models of coal mining in the Hunter Valley use FEFLOW or versions of MODFLOW (see Section 18.104.22.168). MOOSE offers the following features:
- open source and well tested. MOOSE has been built by the nuclear industry and, as such, is subjected to continual and rigorous testing ().
- able to run in batch-mode on high-performance computing clusters in order to complete the analysis. MOOSE is designed for efficient parallel computing on high-performance machines, so its size is limited only by the machine.
- able to represent both fine spatial details, both horizontally and vertically around mines, as well as a large regional area. This is important in the which is both large in size, but heavily mined in certain areas. MOOSE is a finite-element code: the finite-element method is the preferred numerical method of capturing such differences in length scales. The finite-element mesh can be fine around rivers and mines in plan view, as well as containing more model layers in the vicinity of mines to accurately model multi-seam mining operations, and coarse in regions of lesser interest.
- ability to accurately model the dynamics of unsaturated flow, especially around the alluvium. MOOSE solves three-dimensional unsaturated flow.
- ability to enhance hydraulic conductivity around longwall mines. MOOSE naturally includes spatially and temporally varying hydraulic properties
- numerically stable so that certain parameter combinations encountered in the uncertainty analysis do not cause the program to crash. MOOSE uses a fully implicit time-stepping scheme. This means it is unconditionally stable (irrespective of the number of source/sink terms and nonlinearities), can take large time steps, and it automatically conserves mass (the mass-balance errors are of the order of machine precision which is approximately 10–13%).
In conclusion, MOOSE incorporates all the requirements of the Hunter groundwater model.
Product Finalisation date
- 22.214.171.124 Methods
- 126.96.36.199 Review of existing models
- 188.8.131.52 Model development
- 184.108.40.206 Boundary and initial conditions
- 220.127.116.11 Implementation of the coal resource development pathway
- 18.104.22.168 Parameterisation
- 22.214.171.124 Observations and predictions
- 126.96.36.199 Uncertainty analysis
- 188.8.131.52 Limitations and conclusions
- Currency of scientific results
- Contributors to the Technical Programme
- About this technical product