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- W1972741719 abstract "The relative aero-acoustic effectiveness of two core engine suppressors, a contractor-designed suppressor delivered with the Quiet Engine, and a NASA-designed suppressor was evaluated. The NASA suppressor was tested with and without a splitter making a total of three configurations being reported in addition to the baseline hardwall case. The aerodynamic results are presented in terms of tailpipe pressure loss, corrected net thrust, and corrected specific fuel consumption as functions of engine power setting. The acoustic results are divided into duct and far-field acoustic data. The NASA-designed core suppressor did the better job of suppressing aft end noise, but the splitter associated with it caused a significant engine performance penality. The NASA core suppressor without the spltter suppressed most of the core noise without any engine performance penalty." @default.
- W1972741719 created "2016-06-24" @default.
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- W1972741719 date "1977-07-11" @default.
- W1972741719 modified "2023-09-24" @default.
- W1972741719 title "Aero-acoustic performance comparison of core engine noise suppressors on NASA quiet engine 'C'" @default.
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- W1972741719 doi "https://doi.org/10.2514/6.1977-922" @default.
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