SimScale Error When Creating External Flow Volume

Hello, good morning.

I am currently working on a project to optimize the shark fin area of a race car by varying the yaw angle. After modifying the prototype and cleaning up the geometry to avoid import issues, I encountered a problem in SimScale.

The geometry imports successfully and does not show any errors. I have also simplified the model by removing all unnecessary parts, including the cockpit, internal engine components, the gearbox, and other non-essential elements.

However, when I try to create the External Flow Volume, SimScale returns an error, and I cannot understand why. Since the geometry itself appears to be valid and error-free, I am unsure what is causing the issue.

Has anyone experienced a similar problem or could suggest possible causes and solutions?

Thank you in advance for your help. SimScale Login