Aircraft Turbojets

This lecture has several objectives:

• to get deeper into the details concerning the notions of aero-energetics in the frame of open systems with compressible flows, which are essential for the understanding and the study of the performance of turbojet engines.
• to list and sort the different propulsion systems for aeronautics (turbojet, turbofan, turboprop...) with the associated aircraft.
• to learn how to calculate the performance of turbojet engines, for a prescribed operating point, and to know how to simply design a propulsion system.

• Aero-thermodynamics of the steady quasi-monodimensional flows (quantification and effects of the exchanges of work, heat and viscous shear layers)
• Complements of aero-thermodynamics for open systems with compressible flows
• Characterisation of compressors and turbines (exchanged energy, efficiency, performance map, mechanical behaviour, vibrations and material)
• Aero-mechanical characterisation of the other components (combustor, nozzle, ...)
• Performance analysis of the turbojet engines
• First approach and tools for the design of turbojet engines