Joshua Bondoc

Here's a new project file with just the dae31. I have been using the dat file but I gave you the txt in case you could find something wrong with the coordinates. I still get non-converged results usually at 2 deg angle of attack.

Hello. I'm new to XFLR5 and have been trying to figure out the Xfoil direct analysis module. So far I've been able to get all the data from the S7055 airfoil from 0-10 deg angle of attack by exporting the txt file, even though the polar graphs do not show up. However, when I try the same process with the DAE-31 airfoil, the process does not converge usually for the 2 deg angle of attack. I've tried changing the number of panels to 100, 125, and 150 with similar lack of results. I've checked the formatting...