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Search took 0.00 seconds. Search: Posts Made By: Pascal_doran
Forum: OpenFOAM Running, Solving & CFD September 21, 2010, 10:22
Replies: 17
Views: 5,911
Posted By Pascal_doran
Hi Patricio, I think you're totally right. I...

Hi Patricio,

I think you're totally right. I was just wondering what was the most efficient way to compute the vorticity. In my case the mesh is orthogonal :) so I will keep using the vorticity...
Forum: OpenFOAM Running, Solving & CFD September 20, 2010, 17:27
Replies: 17
Views: 5,911
Posted By Pascal_doran
I use the vorticity for tracking the position of...

I use the vorticity for tracking the position of wake vortices and for stability analysis.
Forum: OpenFOAM Running, Solving & CFD September 20, 2010, 17:18
Replies: 17
Views: 5,911
Posted By Pascal_doran
Thanks for your reply, So are you saying that I...

Thanks for your reply,
So are you saying that I can't compute vorticity directly from the flux? Because phi must be a surfaceScalar and the vorticity must a volVector. What are you suggesting me to...
Forum: OpenFOAM Running, Solving & CFD September 20, 2010, 16:17
Replies: 17
Views: 5,911
Posted By Pascal_doran
Hi Alberto, Do you have an idea how to...

Hi Alberto,

Do you have an idea how to compute the vorticity based on the flux phi like this :
curl(phi)

When I tried to compiled I got this error message :
zVorticityPhi.C:82: error: no...
Forum: OpenFOAM Running, Solving & CFD June 18, 2010, 19:52
Replies: 17
Views: 5,911
Posted By Pascal_doran
Thank you Alberto! I really appreciate the...

Thank you Alberto!

I really appreciate the short and long answer! It really helps me.

Regards,

Pascal
Forum: OpenFOAM Running, Solving & CFD June 18, 2010, 18:46
Replies: 17
Views: 5,911
Posted By Pascal_doran
Thank you for your help But can you explain...

Thank you for your help

But can you explain me why it is better to check div(phi) than to check div(U) both should be near zero? And by the way what is a good value for div(U) and div(phi) for an...
Forum: OpenFOAM Running, Solving & CFD June 17, 2010, 16:16
Replies: 17
Views: 5,911
Posted By Pascal_doran
non zero divergence for incompressible flow!

Hi all,

I'm simulating wake vortices in ground effect. I use icoFoam (incompressible) solver. But when I compute the divergence of U, I find non zero divergence (~-0.5 to 0.5).

I compute the...
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