1. Propulsion Engineering Centre, Cranfield University, Bedfordshire MK430AL, UK e-mail:
2. Propulsion Engineering Centre, Cranfield University, Bedfordshire MK430AL, UK
3. Head of Gas Turbine Engineering Propulsion Engineering Centre, Cranfield University, Bedfordshire MK430AL, UK e-mail:
4. NOESIS Solutions, Gaston Geenslaan, 11, B4, Leuven 3001, Belgium e-mail: