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I have been trying to run an airfoil. The runtimes were high so I have tried to run 2D CFD's. I cannot get any Inventor sketch accepted by Simulation 360 CFD Trial. Even a simple rectangle produces the screenshot I have attached. I am assuming you make a sketch in Inventor and then launch the CFD program to start a 2D CFD analysis. Am I wrong in that assumption?
I haven't found much in the help files for 2D anything. That is frustrating.
Is there a rule of thumb figure on how much faster a 2D analysis is versus a 3D analysis?
I am guessing that you drew the sketch and then launched Sim CFD from the Inventor plug-in without generating the 2D surface itself. If that's the case, you will need to generate the 2D surface in inventor using 3D Model>Surface>Patch tool, only then should you launch Sim CFD.
![Autodesk Design & Make Report](https://forums.autodesk.com/t5/image/serverpage/image-id/1350519iCB55845EBFC43016/image-size/large?v=v2&px=999" "Autodesk Design & Make Report")