1. Centre for Propulsion, School of Aerospace, Transport and Manufacturing, Cranfield University, Bedfordshire MK430AL, UK e-mail:
2. Center for Propulsion, School of Aerospace, Transport and Manufacturing, Cranfield University, Bedfordshire MK430AL, UK e-mail:
3. NOESIS Solutions, Gaston Geenslaan, 11, B4, Leuven 3001, Belgium e-mail: