[farzadmech]

Hello everyone
I have two geometries where one of them is a simple shape and the other one is more complicated;

1- simple geometry: Laminar and Turbulent(komegaSST) flow both works with no problem.


2- complicated geometry: Laminar works, but Turbulent gives error. For the complicated geometry checkMesh shows no problem at all, so I am only doubtful about my initial condition for k and omega(I am using komegaSST).

By looking at the attached figure you can see what is my problem. Once, I tired o use transient sovler(pimpleFoam) to see if it work, but it works only for laminar flow for the second geometry which you can see in below link.

courant number increases to rather large values


I will be thank full if anyone answer my question.