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Forum: OpenFOAM Running, Solving & CFD

August 1, 2013, 08:57

Replies: 6

motorBike Residuals for SST k-omega... and mine

Views: 4,233

Posted By fredo490

I've never said that it is an "instable version...

I've never said that it is an "instable version of standard k-epsilon"...

1) I said that no matter what, it is dangerous to work with a 4 < y+ < 20 (which is the area near y+ = 11 that is the...

Forum: OpenFOAM Running, Solving & CFD

July 31, 2013, 08:08

Replies: 6

motorBike Residuals for SST k-omega... and mine

Views: 4,233

Posted By fredo490

K-Omega SST works with y+ > 4 because it switchs...

K-Omega SST works with y+ > 4 because it switchs to a high Reynolds model. So don't expect to take advantages of K-omega SST if you have a y+ > 4 ! Just take a standard k-epsilon and it's done....

Forum: OpenFOAM Running, Solving & CFD

April 17, 2013, 14:43

Replies: 6

motorBike Residuals for SST k-omega... and mine

Views: 4,233

Posted By fredo490

Check the yPlus values of your models. To do so...

Check the yPlus values of your models. To do so you can use the yplusRAS command to calculate it. To use the k omega you need to have a maximum yPlus of about 4.

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