Very fast convergence

Ahmad_Mwaheb · February 10, 2018, 17:10

Hello everyone,

I am modeling 2d multiphase problem VOF. I noticed that there is Avery fast convergent solutions before 20 iterations. My average orthogonal quality is 0.98. Is this normal?

CeesH · March 5, 2018, 11:17

That depends very much on your exact simulation details, but for a transient simulation 20 iterations/timestep is surely possible. However, it could also be that you did not change the default 20 iterations/timestep.

For a steady-state simulation, I'd be weary of this number of iterations.

February 10, 2018, 17:10	Very fast convergence	#1
Ahmad_Mwaheb New Member Ahmad Mwaheb Join Date: Feb 2018 Posts: 2 Rep Power: 0	Hello everyone, I am modeling 2d multiphase problem VOF. I noticed that there is Avery fast convergent solutions before 20 iterations. My average orthogonal quality is 0.98. Is this normal?

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March 5, 2018, 11:17		#2
CeesH Senior Member Cees Haringa Join Date: May 2013 Location: Delft Posts: 607 Rep Power: 0	That depends very much on your exact simulation details, but for a transient simulation 20 iterations/timestep is surely possible. However, it could also be that you did not change the default 20 iterations/timestep. For a steady-state simulation, I'd be weary of this number of iterations.