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-   -   [ICEM] export structured mesh from icem to fluent (http://www.cfd-online.com/Forums/ansys-meshing/96448-export-structured-mesh-icem-fluent.html)

alecon88 January 23, 2012 12:28

export structured mesh from icem to fluent
 
Hi! I'm working with ansys for the first time, I have done the geometry with design modeler and after the mesh with ICEM, now I should start with the simulation but I don't know how to export the mesh form icem to fluent.
If I click on Icem in:
"output-select solver- fluent v6" he tell me that "Solver Fluent_V6 supports unstructured mesh", how can I export this mesh?
Thank you

Far January 23, 2012 13:11

right click on the pre mesh in left window and select option unstructured mesh as fluent is unstructured solver. Your mesh may look like structured one.g. quad (2d) or hexahedral (3D) mesh but Fluent reads this as unstructured.

alecon88 January 23, 2012 15:19

Thank you for the fast answer. I have a tetra-mixed mesh, the problem is that I haven't the pre-mesh because I have done the mesh without doing bockling... I wasn't able to associate edge-curve.. do you think that my mesh isn't good?

Far January 23, 2012 16:47

Hexa meshing is always preferred for its advantages. But in some situations when geometry is complicated and flow is not aligned to mesh, the other mesh types with higher quality/less efforts may be preffered over hexa.
You should be able to export any type of mesh from ICEM to Fluent.
Why you are not able to make associations? where you are getting problems? Can you please post some pics?

alecon88 January 23, 2012 18:53

1 Attachment(s)
Quote:

Originally Posted by alecon88 (Post 340658)
Hi! I'm working with ansys for the first time, I have done the geometry with design modeler and after the mesh with ICEM, now I should start with the simulation but I don't know how to export the mesh form icem to fluent.
If I click on Icem in:
"output-select solver- fluent v6" he tell me that "Solver Fluent_V6 supports unstructured mesh", how can I export this mesh?
Thank you

Quote:

Originally Posted by Far (Post 340720)
Hexa meshing is always preferred for its advantages. But in some situations when geometry is complicated and flow is not aligned to mesh, the other mesh types with higher quality/less efforts may be preffered over hexa.
You should be able to export any type of mesh from ICEM to Fluent.
Why you are not able to make associations? where you are getting problems? Can you please post some pics?


I have done tetra-mix only because it was default!! I'm not able to associate because I don't know which edge I should select... I have a combustion chamber, so like a box, with an hole at the top and then in one side there are 2 concentrical pipe, one for the inlet of the air e one for the gas.. so for example at the top of the chamber I'm not able to understand which edge I have to associate at the hole and so on...
So if I haven't a pre-mesh, how can I import the mesh?
I attached a 2D sketch of my geometry, you have to imagine that I have a 3D!
Thank you very much!!


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