New models for thrust augmenting ejector performance prediction and feeder duct dynamic analysis are presented and applied to a proposed Short Take Off and Vertical Landing (STOVL) aircraft configuration. Central to the analysis is the nontraditional treatment of the time-dependent volume integrals in the otherwise conventional control-volume approach. In the case of the thrust augmenting ejector, the analysis required a new relationship for transfer of kinetic energy from the primary flow to the secondary flow. Extraction of the required empirical corrections from current steady-state experimental data is discussed; a possible approach for modeling insight through Computational Fluid Dynamics (CFD) is presented.
A modeling technique for STOVL ejector and volume dynamics
Joint Propulsion Conference ; 1990 ; Orlando, FL, United States
01.01.1990
Aufsatz (Konferenz)
Keine Angabe
Englisch
Modeling Technique for STOVL Ejector and Volume Dynamics
NTIS | 1990
|A model for prediction of STOVL ejector dynamics
NTRS | 1989
|The Synthesis of Ejector Lift/Vectored Thrust for STOVL
SAE Technical Papers | 1987
|