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Old   October 7, 2015, 11:07
Default Export data in the cell center
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Hello,

Can I export data, like pressure and velocity fields, in the cell center instead of at nodes in CFX ?

Thank you for your answer,
Marine
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Old   October 7, 2015, 11:11
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ANSYS CFX does not uses cells, but elements and control volumes.

The control volumes are formed around a node as a collation of sectors of elements the node belongs to.

Now, which center do you want ? At the center of the element, or at the center of the control volume.

In any case, the export is always done at the control volumes values, i.e. the nodes. The nodes will be at the center of the control volumes for a uniform mesh only.
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Old   October 7, 2015, 19:28
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I would like to extract data in the center of the element.
Certain software, like STAR-CCM+, allowed to extract data either at nodes or in the celle center ... Why not CFX ?

Quote:
Originally Posted by Opaque View Post
ANSYS CFX does not uses cells, but elements and control volumes.

The control volumes are formed around a node as a collation of sectors of elements the node belongs to.

Now, which center do you want ? At the center of the element, or at the center of the control volume.

In any case, the export is always done at the control volumes values, i.e. the nodes. The nodes will be at the center of the control volumes for a uniform mesh only.
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Old   October 8, 2015, 00:20
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Quote:
Originally Posted by MissCFD View Post
I would like to extract data in the center of the element.
Certain software, like STAR-CCM+, allowed to extract data either at nodes or in the celle center ... Why not CFX ?
Well, I think you can create Point Cloud object in CFD-post and then use it as export location.

Whoops. That won't work, sorry. I forgot that there's only Vertex sampling.
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