code_saturne User's Forum

Hi,

My simulation diverges "digergence Turb Kin" or "Turb visc" so I must change the courant number, so to change it I need to change the value of "COUMAX" from what I found in the SATURNE manual.

But looking in the subroutine "usini1" there is no trace of "COUMAX", is "ichrvr (ipp)" is equivalent to "CAUMAX"

Thanks for all

Hello,

No ichrvr is documented also, so you should see it has no relation to coumax.

You can define coumax even if it is not in the examples (in usipsu).

Also, if you are not using a varying time step, coumax is not used, so you should only set dtref.

Regards,

Yvan

Hello Yvan,

Thanks for this precision! it's clear now