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Forum: OpenFOAM Running, Solving & CFD

October 3, 2018, 08:56

Replies: 30

Sudden contration

Views: 2,089

Posted By piu58

> It could be that with CFD you can not expect to...

> It could be that with CFD you can not expect to get results more precise than within a factor of 5

You may expect much better results.

Start with a simple geometry, a simple physics (low to...

Forum: OpenFOAM Running, Solving & CFD

October 3, 2018, 05:38

Replies: 30

Sudden contration

Views: 2,089

Posted By piu58

> ecause I'm investigation how a OpenFOAM...

> ecause I'm investigation how a OpenFOAM workflow can be implemented at our company

I don't think that it works that way. OF (and other cfd software) is not some kind of advanced pocket computer....

Forum: OpenFOAM Running, Solving & CFD

October 2, 2018, 12:09

Replies: 30

Sudden contration

Views: 2,089

Posted By piu58

> Reynolds number is very high...200000 - 300000 ...

> Reynolds number is very high...200000 - 300000

I recommend starting with lower Re numbers and looking what happens.

> what you mean by manual mesh? How do I do that?

blockMesh.

Forum: OpenFOAM Running, Solving & CFD

October 2, 2018, 06:20

Replies: 30

Sudden contration

Views: 2,089

Posted By piu58

If a model allows manual meshing you should go...

If a model allows manual meshing you should go that way. In you case it is straightforward.

If you look closely at the meshes the have strange regions both.

But I don't believe that your...

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