ParStokes
Posted: 11 Nov 2013, 12:14
Hi all,
I have run now the ParStokes Solver and I am comparing to the "normal" Navier-Stokes Solver (with FlowModel=Stokes) and I get in some regions rather large differences. I haven't yet played around a lot with the different parameters (for ex. convergence tolerances), but I was wondering what has already been done in terms of comparison?
Am I right assuming that the solution of the "normal" Navier-Stokes (direct solution for the linear part and fully converged for the nonlinear part) should be considered as the "real" one, so in principle I should tune the different parameters from the ParStokes to get as close as possible to the Navier-Stokes solution?
Thanks,
Martina
P.S. To Peter/Fab/and others from the last Elmer course: In the meanwhile my ParStokes Solver works - as long as I do restarts only from runs where the ParStokes Solver is already present in the sif-file. I don't know what error I had last week in the end when I had these additional errors, I simply started over and it worked right away.
I have run now the ParStokes Solver and I am comparing to the "normal" Navier-Stokes Solver (with FlowModel=Stokes) and I get in some regions rather large differences. I haven't yet played around a lot with the different parameters (for ex. convergence tolerances), but I was wondering what has already been done in terms of comparison?
Am I right assuming that the solution of the "normal" Navier-Stokes (direct solution for the linear part and fully converged for the nonlinear part) should be considered as the "real" one, so in principle I should tune the different parameters from the ParStokes to get as close as possible to the Navier-Stokes solution?
Thanks,
Martina
P.S. To Peter/Fab/and others from the last Elmer course: In the meanwhile my ParStokes Solver works - as long as I do restarts only from runs where the ParStokes Solver is already present in the sif-file. I don't know what error I had last week in the end when I had these additional errors, I simply started over and it worked right away.