When running the OpenFAST Tailfin_FreeYaw1DOF_PolarBased case, this warning appears:
FAST_InitializeAll:AD_Init:Init_AFIparams:AFI_Init:ReadAFfile:Airfoil data should go from -180
degrees to 180 degrees and the coefficients at the ends should be the same.
When running the OpenFAST
Tailfin_FreeYaw1DOF_PolarBased
case, this warning appears:It looks like the airfoil file in that case has a linear
cl
curve instead of something periodic. See https://github.com/OpenFAST/r-test/blob/main/glue-codes/openfast/Tailfin_FreeYaw1DOF_PolarBased/Polar_2PiAlpha.dat