1. Advanced Engineering Direction, Industria de TurboPropulsores S.A., Francisca Delgado, 9, Alcobendas, Madrid 28108, Spain e-mail: ; Associate Professor, Department of Fluid Dynamics and Aerospace Propulsion, School of Aeronautics and Space, UPM, Madrid 28040, Spain
2. School of Aeronautics and Space, Universidad Politécnica de Madrid, Plaza Cardenal Cisneros, Madrid 28040, Spain e-mail: