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Forum: OpenFOAM Running, Solving & CFD

March 23, 2005, 03:32

Replies: 19

SFCD Scheme

Views: 5,864

Posted By henry

But the dynamic model you have

But the dynamic model you have chosen averages over the whole domain, i.e. produces a single coefficient for the whole domain, how would that help with your delta variation?

Forum: OpenFOAM Running, Solving & CFD

March 22, 2005, 18:09

Replies: 19

SFCD Scheme

Views: 5,864

Posted By henry

Why do you think the dynamic m

Why do you think the dynamic models will handle grid variations better than transport models? One option to help with the grid variation is to use a smoothed delta field which OpenFOAM supports.
...

Forum: OpenFOAM Running, Solving & CFD

March 22, 2005, 15:28

Replies: 19

SFCD Scheme

Views: 5,864

Posted By henry

Which dynamic Smagorinsky mode

Which dynamic Smagorinsky model are you using? The localised one? If so you might see some odd features due to the lack of averaging; it only uses the neighbour cell values. Better forms of...

Forum: OpenFOAM Running, Solving & CFD

March 22, 2005, 15:11

Replies: 19

SFCD Scheme

Views: 5,864

Posted By henry

Do you get them with the stand

Do you get them with the standard Smagorinsky model?

Forum: OpenFOAM Running, Solving & CFD

March 22, 2005, 14:54

Replies: 19

SFCD Scheme

Views: 5,864

Posted By henry

What time scheme are you using

What time scheme are you using?
What max Co number?
What SGS model?
What coefficients?
What is the Re number?
Where are the oscillations?
Are they Temporal or spatial?

Forum: OpenFOAM Running, Solving & CFD

March 22, 2005, 13:53

Replies: 19

SFCD Scheme

Views: 5,864

Posted By henry

No SFCD is not suitable for LE

No SFCD is not suitable for LES, it is far too diffusive.

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