I have a question about how the airfoil data is utilized in AeroDyn v15.
In AeroDyn15, one can have more blade nodes than airfoil data files. For example, the NREL 5-MW turbine specifies 19 blade nodes with 8 airfoils. How are the airfoil coefficients than applied on the 19 blade nodes? Are they assumed constant for each node with the same AirFoil-ID, or are the coefficients perhaps interpolated over the nodes?