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Showing results 1 to 6 of 6 Search took 0.00 seconds. Search: Posts Made By: alberto

Forum: OpenFOAM October 27, 2011, 14:27

Replies: 17 steady state version of twophaseeulerfoam Views: 4,885 Posted By alberto Yes, that's usually the problem. I implemented... Yes, that's usually the problem. I implemented the Partial Elimination Algorithm (PEA) of Spalding to fix that, and it improves things quite a bit.

Forum: OpenFOAM October 26, 2011, 11:38

Replies: 17 steady state version of twophaseeulerfoam Views: 4,885 Posted By alberto What Courant number was controlling the... What Courant number was controlling the time-step? One of the phases or the one depending on Ur? Best,

Forum: OpenFOAM October 26, 2011, 11:07

Replies: 17 steady state version of twophaseeulerfoam Views: 4,885 Posted By alberto Well, in theory this is not true, since he is... Well, in theory this is not true, since he is using an implicit method, and an iterative method with sub-iterations. However there are other limiting factors, like the time-scale of the momentum...

Forum: OpenFOAM October 16, 2011, 20:10

Replies: 17 steady state version of twophaseeulerfoam Views: 4,885 Posted By alberto Second choice :-) Second choice :-)

Forum: OpenFOAM October 15, 2011, 19:58

Replies: 17 steady state version of twophaseeulerfoam Views: 4,885 Posted By alberto It this the case of the air injection in liquid? ... It this the case of the air injection in liquid? It depends on the system. I would say the rule of thumb is "as much as it is possible without having instabilities". The multi-fluid equations...

Forum: OpenFOAM October 14, 2011, 20:50

Replies: 17 steady state version of twophaseeulerfoam Views: 4,885 Posted By alberto Two-phase flows are intrinsically unsteady. In... Two-phase flows are intrinsically unsteady. In most of the cases a steady state solution does not exist, and you would end up with a wrong result. In OpenFOAM 2.0.x, the PIMPLE algorithm is used...

Showing results 1 to 6 of 6

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