Active Control of Dual-Bell Nozzle Operation Mode Transition by Film Cooling and Mixture Ratio Variation

A numerical study is conducted to investigate the impact of a film-cooled dual-bell nozzle extension on its operation mode transition behavior. Therefore, unsteady Reynolds-averaged Navier–Stokes simulations of the transition process between the sea level and altitude modes are carried out. The inve...

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Veröffentlicht in:	Journal of propulsion and power 2020-01, Vol.36 (1), p.47-58
Hauptverfasser:	Schneider, Dirk, Stark, Ralf, Génin, Chloé, Oschwald, Michael, Kostyrkin, Konstantin
Format:	Artikel
Sprache:	eng
Schlagworte:	Active control Combustion chambers Computational fluid dynamics Computer simulation Cooling Cooling rate Film cooling Liquid oxygen Mass flow rate Nozzles Pressure ratio Sea level
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