1983•NASA STI Repository (National Aeronautics and Space Administration)Open access
Windmilling of the rotor of a turbojet engine with an axial-flow compressor under flight conditions
Jan Borgon
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Abstract
The concept of rotor windmilling is understood to mean rotation of the rotor caused solely by the energy of the air (not gas) streaming through the apertures between the blades (under conditions of power shut-off) under the action of dynamic pressure. The concept of windmilling is analyzed for an engine with an axial-flow compressor, showing that windmilling must be taken into account in such cases as in-flight reignition of the engine. A graph-analytic method for determining the range of windmilling is proposed.
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