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- W1987196901 abstract "An analysis is developed for the noise generated by the interaction of a rotor viscous wake with a cascade of swept stator vanes. The stator vanes span a channel formed by infinite parallel walls and containing a subsonic mean flow. High frequency interactions, for which the noise generation is concentrated at the vane leading edge, are considered. The analysis utilizes a superposition of the solution to the isolated stator vane problem, presented in an earlier paper, to develop an approximate solution to the cascade problem. The rotor wake model includes the features of wake circumferential lean and a linear spanwise variation of the magnitude of the wake deficit velocity. Calculations are presented which show that, for rotor wakes with moderate circumferential lean, stator sweep produces substantial reductions in noise level. The vane sweep must be oriented to enhance the phase lags along the vane leading edge produced by wake lean. The noise levels are found to be fairly insensitive to spanwise variations in the wake deficit." @default.
- W1987196901 created "2016-06-24" @default.
- W1987196901 creator A5025534183 @default.
- W1987196901 creator A5070021072 @default.
- W1987196901 date "1986-07-09" @default.
- W1987196901 modified "2023-09-27" @default.
- W1987196901 title "Noise generated by convected gusts interacting with swept airfoil cascades" @default.
- W1987196901 doi "https://doi.org/10.2514/6.1986-1872" @default.
- W1987196901 hasPublicationYear "1986" @default.
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