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Forum: OpenFOAM Running, Solving & CFD

August 24, 2014, 09:53

Replies: 8

Disabling Wall Functions

Views: 2,837

Posted By huangxianbei

Thank you very much. Now I know that the nut and...

Thank you very much. Now I know that the nut and nuSgs may be a generic wall function. So whatever the resolution of the mesh is , using a wall function will be better.

Forum: OpenFOAM Running, Solving & CFD

August 24, 2014, 02:03

Replies: 8

Disabling Wall Functions

Views: 2,837

Posted By huangxianbei

I see, you mean it's a kind of automatic wall...

I see, you mean it's a kind of automatic wall function similar to the commercial codes like CFX, right? Just not long before, I was confused about the wall function that there is no explicit y+...

Forum: OpenFOAM Running, Solving & CFD

August 23, 2014, 10:39

Replies: 8

Disabling Wall Functions

Views: 2,837

Posted By huangxianbei

Hi,Onno: Thank you for your reply. As omega...

Hi,Onno:
Thank you for your reply. As omega based turbulence model can solve the finer mesh with y+<3 or less, so no wall function is needed when the mesh is fine enough. What do you mean by...

Forum: OpenFOAM Running, Solving & CFD

August 23, 2014, 04:30

Replies: 8

Disabling Wall Functions

Views: 2,837

Posted By huangxianbei

Hi,Onno: Why the nut is set to be...

Hi,Onno:
Why the nut is set to be calculated instead of zerogradient? I remember that when no wall function is needed, the type should be zerogradient. Please correct me if I'm wrong

Xianbei

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