Originally Posted by maddalena

thank you, however:

corrected is extra, isn't it?

This will no improve the initial convergence, since the solver will stop when the relTol is 0.05. thus it will not run until 1E-12 but stop at 0.05. And pressure equation will be not converged smoothly, I guess. What are your experience on the subject? What do you mean with not efficient?

Somewhere else it has been suggested to use pressure tolerance 2 order of magnitude lower than velocity tolerance. Therefore, as I lower velocity tol, I must lower pressure tol as well. This was suggested as a "remedy" due to the higher difficulty on pressure eq to get convergence.

On the contrary of what reported above, fvSchemes attached on the last post used a linear upwind scheme...
Does it applies with tet mesh or with hea as well?

Hope to get it when published!

Therefore, my next steps are:

1. use relTol 0.05 on p -> BTW, why not efficient?
2. lower U tol
3. use first order everywhere.

One more question: is this setup convergent, but not accurate?

mad