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time step continuity error, fvScheme

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Old   May 19, 2010, 10:04
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Ngoc-Minh Truong
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As you are using a steady-state solver, the timestep is not important. It is not a setting that will change the computation. Use "one" to correspond to the number of iteration
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Old   May 19, 2010, 10:32
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achinta
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Hi,
Could I get a solution if I use k-omega sst model? Does any of the tutorials use this turbulence model?

Thanks.

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Achinta
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Old   May 19, 2010, 10:45
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Hello,

I think that changing your turbulence model will not fix your problem, you have to fix your checkMesh errors before playing with turbulence. Anyway, the motorBike tutorial use the kOmegaSST turbulence model.

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Christian
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Old   May 19, 2010, 10:51
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Hi,
I am working on mesh too. Thought I may get better results with k-omega sst model. motorbike tutorials is not running. somethings wrong.

I found a strange thing in "$ HOME/OpenFOAM/usr-1.6/run/tutorials/incompressible/simpleFoam/motorBike/0/omega"

FoamFile
{
version 2.0;
format ascii;
class volScalarField;
object epsilon;
}

Is object epsilon?!!

Please let me know if there are any other tutorials using k-omega sst model.

Thanks

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Achinta
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Old   May 20, 2010, 03:08
Default cyclic bc!
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Quote:
Originally Posted by achinta View Post
Hi,
The physics of the problem requires rotational periodic condition which is not possible with 'symmetryPlane'. So I need 'wedge'. Is there any other way to implement the rotational periodic condition?

Regards,
Achinta
Hello Achinta,
instead of using a wedge bc, you could try to use a cyclic bc. Wedge bc is usually used for a quasi 3D mesh (3D mesh one cell thick), while a cyclic bc is more suited for a real 3D case. Attention: the two faces creating the cyclic bc must be equal!
Hope this help,
cheers,

mad
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