Non-Orthogonal Correctors

In your tutorial for two sided membranes you request that the Non Orthogonal Corrector be set to zero. That standard is to have a value of 1. For what reason would one alter this value from 1 and what effect does that have.


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Balance between robustness and speed

The higher the value of the Non Orthogonal Corrector the slower the simulation will run, but the more robust the simulation will be. If you have a poor quality mesh then increasing the Non Orthogonal Corrector may provide a path to convergence. Often you can only determine if a higher or lower value is necessary by running the simulation and experimenting.

As with many things CFD it's a balance between robustness and speed.