I would like to use CFD based tip loss model as mentioned in the Aerodyn tutorial like Xu&Sarkar. I understand that this is rotor specific. I have now load variation from CFD and want to apply the function that I have instead of Prandtl’s. Could you please let me know where is Xu&Sarkar et.al in the Aerodyne source code and how can I use that in the Aerodyn input file for the OpenFAST simulation e.g. 5MW or 15MW example blade?