periodic
 

hi everyone,

am doing a combustion simulation. its a 3D 30deg section of a annnular combustor.

i gave the periodic to be rotational. but i get a problem

divergence detected in AMG solver: pressure correction

when i change this periodic to translational the solver runs but has revferse flow problem.

can anyone suggest which periodic condition to use and also how to solver the AMG solver divergence error.

thanks