Archivio Istituzionale della RicercaA numerical method for predicting the unsteady performances of an air-breathing engine is presented. The flow around the nacelle and inside the engine ducts (e.g. air intakes, nozzles) is resolved by CFD computations, while the flow evolution through compressor and turbine bladings are simulated via low order CFD models and actuator disks. Shaft work balance allows to derive the instantaneous rotor speed and to couple the fluid and engine dynamics. Without loss of generality, the methodology is explained assuming the turbojet as the reference engine.
Simulation of Jet Engine Transient by a CFD Method / Ferlauto, Michele; Marsilio, Roberto. - (AIAA PAPER 2006-4968):(2006). (Intervento presentato al convegno 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference tenutosi a Sacramento, CA nel 9 - 12 July 2006).
Simulation of Jet Engine Transient by a CFD Method
FERLAUTO, Michele;MARSILIO, Roberto
2006
Abstract
A numerical method for predicting the unsteady performances of an air-breathing engine is presented. The flow around the nacelle and inside the engine ducts (e.g. air intakes, nozzles) is resolved by CFD computations, while the flow evolution through compressor and turbine bladings are simulated via low order CFD models and actuator disks. Shaft work balance allows to derive the instantaneous rotor speed and to couple the fluid and engine dynamics. Without loss of generality, the methodology is explained assuming the turbojet as the reference engine.
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https://hdl.handle.net/11583/1414618
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