Search Results

Showing results 1 to 4 of 4
Search took 0.00 seconds. Search: Posts Made By: alberto

Forum: OpenFOAM Running, Solving & CFD

April 2, 2009, 02:26

Replies: 40

What is the best "way" to get vortex shedding ?

Views: 13,787

Posted By alberto

Just a note, as Hrv suggested, to have second...

Just a note, as Hrv suggested, to have second order on all meshes, use leastSquares for gradient evaluation. However the use of Gauss should not prevent the vortex shedding.

Imho this is not...

Forum: OpenFOAM Running, Solving & CFD

March 31, 2009, 02:25

Replies: 40

What is the best "way" to get vortex shedding ?

Views: 13,787

Posted By alberto

That's exactly the point of using more accurate...

That's exactly the point of using more accurate schemes too: reducing numerical dissipation.

Do you mean introducing "non-orthogonality" in the direction of the flow? This should not be...

Forum: OpenFOAM Running, Solving & CFD

March 29, 2009, 12:08

Replies: 40

What is the best "way" to get vortex shedding ?

Views: 13,787

Posted By alberto

Hi Harly, I asked because your fvScheme...

Hi Harly,
I asked because your fvScheme contains CrankNicholson 0.5, while the pure CrankNicholson scheme should be specified with "1", to give second order accuracy (see user's manual, p.U-112)....

Forum: OpenFOAM Running, Solving & CFD

March 29, 2009, 01:29

Replies: 40

What is the best "way" to get vortex shedding ?

Views: 13,787

Posted By alberto

Hi, did you try with the linear scheme for...

Hi,

did you try with the linear scheme for the divergence term and backward as time scheme? This would ensure second order accuracy.

Regards,

Showing results 1 to 4 of 4

Forum Jump

All times are GMT -4. The time now is 03:33.