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Forum: OpenFOAM Running, Solving & CFD

September 11, 2013, 12:52

Replies: 11

simpleFoam: switch so second order fvSchemes

Views: 5,621

Posted By roby

Yes. A first order can be demonstrated to be...

Yes. A first order can be demonstrated to be equivalent to a second order to which you add a numerical viscosity, which stabilizes it but "smoothens" sharp gradients. In case your second order does...

Forum: OpenFOAM Running, Solving & CFD

June 11, 2012, 13:19

Replies: 11

simpleFoam: switch so second order fvSchemes

Views: 5,621

Posted By roby

Hi, The effect of using a first or a second...

Hi,

The effect of using a first or a second order scheme is not visible from the residuals (your plots). Nevertheless, the results change.

Forgive me for making it very simple:
In first order...

Forum: OpenFOAM Running, Solving & CFD

June 8, 2012, 12:43

Replies: 11

simpleFoam: switch so second order fvSchemes

Views: 5,621

Posted By roby

I quite agree with fisch, but still how can you...

I quite agree with fisch, but still how can you pass the schemes to a second order?

kind regards

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