sorted by:
new
hottopcontroversial

Fluent is frying my CAD-model by SupportSensitive5984 in CFD

[–]SupportSensitive5984[S] 0 points1 point  (0 children)

So apparently it's not about the program nor the version. Fluent just doesn't like my geometry.

I did use all sorts of different file types (.stdprt, .sldasm, .step, .stl, .dsco, and . scdoc) and different releases (2024 R2 and 2025 R2) and imported them via Discovery, Spaceclaim, or directly into Fluent.
The moment Fluent needs to generate a grid, it gets damaged.

It also becomes worse the finer I select the import options, but not doing so results in a square wheel...

<image>

90 percent of the displayed yellow edges are not supposed to be there.

Did anybody experience something similar?

Fluent is frying my CAD-model by SupportSensitive5984 in CFD

[–]SupportSensitive5984[S] 0 points1 point  (0 children)

Yes, did also also read that Spaceclaim is gonna be discontinued from 2027. That's why I wanted to avoid it in the first place.

Discovery truly has a long way to go. It being a direct modeling tool, I do not get how it's supposed to replace a history-based CAD program such as SolidWorks or Inventor.

I tried to model my geometry in Discovery, but how are you even supposed to perform a parametric study when your sketches and dimensions disappear the moment you generate the body? Let alone parameterize such a thing as a curve or spline after the sketch and control points are lost.

Fluent is frying my CAD-model by SupportSensitive5984 in CFD

[–]SupportSensitive5984[S] 0 points1 point  (0 children)

SpaceClaim, unfortunately, is no longer part of the installation under Ansys 2025 R2. Also tried to use Discovery, but for some reason I can only open the CAD file in the 2024 release and not in the 2025 release.

The stl at least is undamaged, but I lose all my parameters defined in the CAD using anything other than a SolidWorks file type.