Mesh not refined enough at the wall
Posted: Fri Nov 30, 2018 12:27 pm
Hello,
we tried to compute the flow through a dialysis tube, which always worked out with a earlier version of Code_Saturne. Now we are working with Code Saturne 3.0.0 and we do not get the correct results anymore.
In the listing file we get errors, which state:
"WARNING: MESH NOT REFINED ENOUGH AT THE WALL"
Furthermore the mass continuity is not given, so the velocities at the inlet and outlet of the mesh are not the same. We thought it is due to the computation of a turbulent flow with a steady, laminar flow. But even by defining a finer mesh and by decreasing the velocity so that we get a Reynolds number of a laminar flow, we were not able to generate the right results.
Is there a way to solve the problem and get the corect results?
Thank you and best regards,
Farina
we tried to compute the flow through a dialysis tube, which always worked out with a earlier version of Code_Saturne. Now we are working with Code Saturne 3.0.0 and we do not get the correct results anymore.
In the listing file we get errors, which state:
"WARNING: MESH NOT REFINED ENOUGH AT THE WALL"
Furthermore the mass continuity is not given, so the velocities at the inlet and outlet of the mesh are not the same. We thought it is due to the computation of a turbulent flow with a steady, laminar flow. But even by defining a finer mesh and by decreasing the velocity so that we get a Reynolds number of a laminar flow, we were not able to generate the right results.
Is there a way to solve the problem and get the corect results?
Thank you and best regards,
Farina