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.

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.
9781563478185
File in questo prodotto:
File Dimensione Formato  
AIAA-2006-4968.pdf

non disponibili

Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 882.35 kB
Formato Adobe PDF
882.35 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1414618
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo