Up: Physical/Computational parameters
Type of preconditioner to use for the nonhydrostatic pressure solver. For a typical environmental
flow with an aspect ratio of
There is no significant difference among the preconditioners when the aspect ratio is roughly 1.
- No preconditioner - 1000s of iterations to converge
- Diagonal preconditioner - 100s of iterations to converge
- Block-diagonal preconditioner - 10s of iterations to converge.