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- W2334405799 abstract "In an effort to mitigate next-generation fuel efficiency and environmental impact concerns for aviation, open rotor propulsion systems have received renewed interest. However, maintaining the high propulsive efficiency while simultaneously meeting noise goals has been one of the challenges in making open rotor propulsion a viable option. Improvements in prediction tools and design methodologies have opened the design space for next generation open rotor designs that satisfy these challenging objectives. As such, validation of aerodynamic and acoustic prediction tools has been an important aspect of open rotor research efforts. This paper describes validation efforts of a combined computational fluid dynamics and Ffowcs Williams and Hawkings equation methodology for open rotor aeroacoustic modeling. Performance and acoustic predictions were made for a benchmark open rotor blade set and compared with measurements over a range of rotor speeds and observer angles. Overall, the results indicate that the computational approach is acceptable for assessing low-noise open rotor designs. Additionally, this approach may be used to provide realistic incident source fields for acoustic shielding/scattering studies on various aircraft configurations." @default.
- W2334405799 created "2016-06-24" @default.
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- W2334405799 date "2016-01-02" @default.
- W2334405799 modified "2023-09-27" @default.
- W2334405799 title "Isolated Open Rotor Noise Prediction Assessment Using the F31A31 Historical Blade Set" @default.
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- W2334405799 doi "https://doi.org/10.2514/6.2016-1271" @default.
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