Download or read book Turbulence Induced Noise in a Single Stage Axial Flow Fan written by Basil Edmond Robbins (II.) and published by . This book was released on 1974 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sound generated by the interaction of inlet turbulence with a rotating compressor blade row is investigated. Currently, there are two theories relating the rotor geometry and blade aerodynamics to the spectrum of the radiated sound. These theories are extended to include the cascade effect by incorporating a cascade aerodynamic response function for the unsteady lift on the blades into their analyses. To experimentally study this noise source, an aeroacoustic fan facility was designed and built. The parameters investigated include turbulence intensity and longitudinal integral length scale, blade speed, flow coefficient, and blade spacing.