|May 14, 2009, 03:58||
Error when importing cgns mesh created with numeca
Join Date: May 2009
Posts: 1Rep Power: 0
I do some turbomachinery simulations. For grid generation I use numeca, and for the simulation I use CFX11.
Numeca creates the mesh in cgns.
When I import the mesh I always several error messages of this type:
GTMAPI::importmeshToModel - The importing process reported the following warning(s) while importing the mesh from the requested file: Unable to map nodes in interface "bc_6" between Zone "row_1_flux_1_Blade_1_down" and "row_1_flux_1_Blade_1_up" as the not all nodes could be equivalenced.
So my question is: Have anyone else had this problem? Do you know what causes this? And does it influence the simulation result?
|May 14, 2009, 18:30||
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 11,971Rep Power: 93
I think this error is saying it can't equivalence nodes across a periodic boundary. If the nodes across the periodic boundary don't match then ignore the error and use a GGI periodic boundary. If they should match then you will probably adjust the equivalencing tolerance so they match. Then you will be able to use a 1to1 periodic boundary and this is faster and more accurate - but not a show stopper if you can't do it.
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