Learning Forum

[OAnderson]

Hi all,

During workflow of a watertight geometry, when generating mesh, I recieve:

Error: arg(2nd) out of range in substring

Error Object: 7

I don't know what this means, and I haven't been able to find further documentation for troubleshooting. I have made sure the length of the part and surface names are longer than 4 characters and do not incude special characters.

Please help!

 

[OAnderson]

 

To be more specific:

 

• I have no issues generating surface mesh during tutorials such as ‘high-speed train geometry’. I’ve also tried generating a cube directly in SpaceClaim, which I was able to mesh in Fluent.
• The part I am trying to mesh was drawn in Inventor and imported to SpaceClaim as a .stp file. From there it is saved as an .sdoc file, so I don’t really see that the original file type should matter.

I’m new to Ansys so any help is greatly appreciated!

 

[Federico]

Hello, 

Where in the Watertight Geometry workflow are you getting this error?

Maybe there was an issue in translating the original geometry to SpaceClaim. Can you do a Geometry Check in SpaceClaim to ensure that there are no errors with the model?

[OAnderson]

Dear Federico,

Thanks very much for your advice. Geometry Check uncovered the problem: there was, by coincidence, a curved edge which led to a zero thickness at one point. After fixing this, no more problems.

Thanks!

[Federico]

Thanks for your confirmation. Glad it helped :)