Learning Forum

[cesarj.95plus]

Dear support, I am strugging to follow the following workflow:

1. Define named surfaces with shared topology in spaceclaim
2. Mesh the geometry in Fluent meshing
3. Set the slidding grid in Fluent solver

Do you know any good tutorial with spaceclaim + fluent (mesh and solver?)

[cesarj.95plus]

I leave here my progress up to now:

As you can see, I have named the internal and external edges and used shared topology so Fluent meshing admits the geometry:

However these edges don't appear for the mesh inteface creation even though the appear as a "wall" boundary condition I tried to preview the mesh motion but even if the mesh is sliding, there are 2 points that travel with the mesh (which are construction vertex in the CAD):  

I am a bit confused with the grouping that spaceclaim does because even if I set everything into a single named selection, it appears as a deconstructed entity in Fluent, the shared topology edges don't appear anymore for mesh interfaces elections and there isn't a clear way to set the right connectivity.

[Rob]

Share Topology will connect the two sides of the non-conformal, so you're then likely to twist the mesh. I can't see the first image but assume you have wall & shadow pairs? This is one of the few times you don't use Share Topo, but it's fixable in Fluent if it's too big a task to go back to geometry.

Either set up all of the motion as frame motion and then convert to moving mesh.

OR

Have a look in the TUI for

/mesh/modify-zones/slit-...    

Then give Fluent the surface ID of one of the wall or shadow faces.  I can't remember the rest offhand and can't launch Fluent whilst I'm updating my laptop.  From there you can manually create the sliding interface zones.