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- W2124790546 abstract "A numerical study was performed to characterize changes in nozzle performance associated with passive ventilation of the jet flow along the expansion ramp surface. A 1/100 single expansion ramp nozzle model was used as reference model. The passive ventilation is simulated by replacing a part of the impermeable ramp by a porous plate with a vent chamber above it. Due to the natural subsonic flow circulation in the vent chamber the shock induced boundary layer separation is shifted upstream and the overexpanded region is minimized. A gradual increase of the normal thrust vector coefficent can be achieved with higher porosity. The trailing edge of the vent chamber should be located in the rear part of the ramp to reduce the effect of external flow recirculation." @default.
- W2124790546 created "2016-06-24" @default.
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- W2124790546 date "1998-04-27" @default.
- W2124790546 modified "2023-09-23" @default.
- W2124790546 title "Passive control for the off-design performance of a single expansion-ramp nozzle" @default.
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- W2124790546 doi "https://doi.org/10.2514/6.1998-1602" @default.
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