Elmer Discussion Forum

Hi group,

I have solved a incompressible navier-stokes simulation (laminar) and the results converged, but it was oscilating until at the end , as show in the figure. why it was occurred? Is it a problem?

Thanks,
Rodrigo

Hi Rodrigo

The oscillation is related to the nonlinearity of the system. As long as you reach convergence there is no need to worry. You might try setting "Nonlinear System Relaxation Factor" to 0.5-0.7 to supress the oscillations.

-Peter