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Meaning of Ychar and Ypmma

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Old   January 24, 2013, 13:44
Default Meaning of Ychar and Ypmma
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Dear All,

I try to setup a case with three meshes and would like to use chtMultiRegionFoam.

Does anybody know the exact meaning of these values located in the '0' time folder of a case.
Have these values something to do with the y+ value, that must be defined for the resolution of the boundary layer, depending on the kind of flow problem.

These values don't have any entities. Therefore they could be dimensionless sizes.

What is the difference between them and the exakt meaning of the indizes 'char' and 'pmma'?

I've found a couple of threads with the same question, but according to my search results, none of them was answered .

Hope for response!
Thanks two all who try to help!!!

Lisa
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Old   February 20, 2013, 07:18
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Quote:
Originally Posted by aylalisa View Post
Dear All,

I try to setup a case with three meshes and would like to use chtMultiRegionFoam.

Does anybody know the exact meaning of these values located in the '0' time folder of a case.
Have these values something to do with the y+ value, that must be defined for the resolution of the boundary layer, depending on the kind of flow problem.

These values don't have any entities. Therefore they could be dimensionless sizes.

What is the difference between them and the exakt meaning of the indizes 'char' and 'pmma'?

I've found a couple of threads with the same question, but according to my search results, none of them was answered .

Hope for response!
Thanks two all who try to help!!!

Lisa
Hi lisa,
I met dame problem before with the same solver.but no one answered me. afer some search i found that these values may be the contribution of two different species in the solid region.
Please share any other answer if you meet any answer in you way.
Good luck
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Old   October 20, 2013, 05:49
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Has anyone found out what these values are? I'm struggling with finding an explanation.
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