problem with importing airfoil files

[Sofia Georgiou]

Hello all, 

My teammates and I have been trying to import airfoil files without success, despite following all guidelines (.dat file, selig format, name of the airfoil in the 1st line, starting from TE, and so on). The file is not readable and the airfoil cannot be imported. Is there any bug with OpenVSP?

[Rob McDonald]

There are lots of bugs in OpenVSP.  However, there are no known bugs associated with reading in airfoil files at this time.

Where did you get your airfoil file?  Can you post your airfoil file so we can try it out?

Rob

[Sofia Georgiou]

We got it from airfoil tools. I'm posting a drive link containing all the airfoil files.
https://drive.google.com/drive/folders/1lyxfhCbBR2l1mR58ZUQGkmh4stBUYzjB?usp=sharing

[Rob McDonald]

Both files work fine.



Rob

[Sofia Georgiou]

thank you so much for your time!! 
We've been trying to import them by following this exact route: wing --> airfoil--> choose type: AF_FILE--> read file, but it still won't read the file. Do you have clue what could be wrong?

[Rob McDonald]

This shouldn't be a problem, but it is my only guess right now...

If you're using a different locale on your computer, then scanf might be confused about the decimal separator -- . vs ,

To test this, I would open one of the files in a text editor and search/replace . with , and save as a different file.  Then try loading that modified file.

OpenVSP should ignore the system locale and just use the 'C' locale everywhere -- but perhaps something is changing that.

Other than that, I don't have any ideas.

Rob

[Thirumalai A]

I've had some issues with importing Airfoil files as well, and what has worked for me is to copy/paste the coordinates into a known good AF file, or use something like XFOIL/XFLR5 to re-export the coordinates back to a DAT file. I've done that here, perhaps take a look n see if it works?