What is it?
The Matrix Solver menu includes parameters and options for the numerical scheme(s) and algorithms used to solve mathematical groundwater problem formulated for the study area. The algorithms available for solving the discretized flow and/or transport equations include:- Hybrid Successive Over Relaxation
- Successive Over Relaxation
- Conjugate Gradient
- Bi-Conjugate Gradient
- Bi-Conjugate Gradient with Partial Pivoting
How to use it:
Click the ‘Matrix Solver’ link to open the Matrix Solver Options sub-menu. Use the drop-down menus next to 'Flow' and 'Transport' to select matrix solver schemes for flow and transport simulations, respectively.The user may specify the convergence criterion for the numerical solutions, namely: the maximum number of iterations; the threshold of acceptable relative percent error (between successive iterations); the damping/relaxation factor; and the number of preconditions (or condition number) The user may also customize the ‘outer loop’ matrix solve scheme by specifying the number of maximum iterations, the threshold of acceptable relative percent error, the Relaxation Factor, and the frequency with which the dry/wet cells are scanned in the solution matrix.