what format

[fredpied]

hi

i need to analyze one model 3d, and i drew in autocad 3d, opened my file in inventor fusion, and exported it in simulator cfd.

but each time i hve got this message: 

"one incorrect analysis model detected".                so why ? and how must i do it please ?

[tong6]

I searched our error message database but can only find simliar string as "Invalid analysis model detected after import". Is this the one you saw? what version CFD are you using?

[marco.mueller]

you may need to export an ACIS file (*.sat) from AutoCAD and import it to Fusion or CFD.

[fredpied]

yes i will test it, my question is not really this one, i would like to analyze my model, and i ve got error message, and i think it's from here on this picture:

thanks for helping

ps: see the green surface.

[marco.mueller]

Not necessarily but in fact it does not look well...

[fredpied]

yes that's precisely what i don't understand, in autocad, and in fusion i ve got a different model like tis one:

why ?

thanks again.

[fredpied]

others picture for your understanding:

[apolo_vanderberg]

Since that surface is showing in Fusion, it is coming to CFD.

The question would be why is it showing in Fusion.

Now that can happen at times depending on how cleanly built the geometry is that is being opened. If there are small interferences, or sliver surfaces, this can be problematic in its importing.

Go back and check the autocad file in that region to see if there are small overhangs

[fredpied]

yes, it's what i m trying to do, it's my own thing to do, so.

thanks