|September 20, 2007, 05:05||
Dear, I am trying to run a
I am trying to run a simple case of a liquid bubble moving in another liquid.
I use OpenFoam 1.4.1
The DICPCG solver needs about 20 to 300 iterations, right from the start and this does not diminish. I use a very small time step (1e-7).
For the solver settings, I used the standard settings of the DamBreak case.
My model is simply a pipe system (3D) through which the main fluid flows, including a small pipe inside the larger pipe where the bubbles are injected.
Is it normal that the solver needs so many iterations per time step?
Dr. Ries Bouwman
|September 20, 2007, 13:10||
First make sure that your cour
Srinath Madhavan (a.k.a pUl|)
Join Date: Mar 2009
Location: Edmonton, AB, Canada
Posts: 703Rep Power: 13
First make sure that your courant number does not exceed 0.2. Next how bad/good is your mesh? Finally, if everything is going fine except for simulation time, then try using the GAMG solver as opposed to the DICPCG solver.
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