Learning Forum

[nandacd]

Hello

I have been doing simulation on a 3d scanned stl file on fluent. So I have a few surfaces that are overlapping so I used shared topology option in spaceclaim. The stl has half a million facets so spaceclaim is too slow in this process. So I am not sure wat to do.

There is a share topology option in fluent meshing watertight geometry. Also I can use more number of cpus for meshing. So I was wondering if that will do the trick or not?

[Nikhil Narale]

Hello,

When you import .stl file in SpaceClaim, the geometry needs to be converted to solid (question on creating volume in spaceclaim ÔÇö Ansys Learning Forum). While you convert, you can choose to merge the faces to reduce the overall face count which can help to speed up the process.
FYI, The watertight geometry workflow does not support faceted formats, like '.stl'. You can try exporting the CAD in .scdoc or .pmdb format using SpaceClaim, which can be imported in the Ansys Fluent Meshing WGW.

Nikhil

[nandacd]

hi
thanks for your reply.
So I have actually converted the stl to solid. So my question was can we use share topology option in fluent water tight meshing while describing geometry rather than spaceclaim share topology. Since spaceclaim does not work on multi core whereas in fluent meshing we can set number of cpus to speed up the process.

[Nikhil Narale]

Hello,

All the operations in the Fluent Meshing are supported by parallel processing. As per my understanding, only generation of the volume mesh and the boundary layers supports parallel processing. To answer your question, you won't get the benefit of multiple cores while performing Share Topology operation in the Fluent Meshing WGW.

Nikhil