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Sound radiation from a subsonic rotor subjected to turbulenceThe broadband sound radiated by a subsonic rotor subjected to turbulence in the approach stream has been analyzed. The power spectral density of the sound intensity has been found to depend on a characteristic time scale-namely, the integral scale of the turbulence divided by the axial flow velocity-as well as several length-scale ratios. These consist of the ratio of the integral scale to the acoustic wavelength, rotor radius, and blade chord. Due to the simplified model chosen, only a limited number of cascade parameters appear. Limited comparisons with experimental data indicate good agreement with predicted values.
Document ID
19750003123
Document Type
Conference Paper
Authors
Sevik, M. (Pennsylvania State Univ. University Park, PA, United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1974
Publication Information
Publication: Fluid Mech., Acoustics, and Design of Turbomachinery, Pt. 2
Subject Category
FLUID MECHANICS AND HEAT TRANSFER
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19750003119Analytic PrimaryFluid mechanics, acoustics, and design of turbomachinery, part 2