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- W2077536892 abstract "Contrarotating open rotor propulsion systems have seen renewed interest as a possible economic andenvironmentally friendly powerplant for future transport aircraft. While the potential efficiency benefits are wellaccepted, concerns persist regarding the probable rotor-to-rotor interaction-driven noise penalty this type of enginewould have in comparison to modern ducted turbofan engines. This paper presents results of a collaborativeexperimental and numerical study to quantify and study in-depth the complex flowfield of a generic contrarotatingopen rotor model at wind-tunnel scale. The model has 10 front blades and 8 aft blades, with blade design similar tomodern propellers for high-disk loadings. The comparison of flow visualization results obtained through the use ofmodern stereoscopic particle image velocimetry and unsteady Reynolds-averaged Navier–Stokes simulations helpsto improve understanding of the interactions of front-rotor-blade wakes and tip vortices with the aft rotor, which isan important aspect to guide the design of future efficient and quiet contrarotating open rotor engines. The generallygood match between the experimental and numerical slipstream results gives confidence in the utility for theiranalysis capabilities in this field." @default.
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- W2077536892 date "2012-11-01" @default.
- W2077536892 modified "2023-10-14" @default.
- W2077536892 title "Experimental and Numerical Investigation of a Contra Rotating Open-Rotor Flowfield" @default.
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- W2077536892 doi "https://doi.org/10.2514/1.c031698" @default.
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