Loading...
Please wait, while we are loading the content...
Similar Documents
Sound radiation from a subsonic rotor subjected to turbulence
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Sevik, M. |
| Copyright Year | 1974 |
| Description | The 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. |
| File Size | 11780897 |
| Page Count | 20 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19750003123 |
| Archival Resource Key | ark:/13960/t0gv0cg0k |
| Language | English |
| Publisher Date | 1974-01-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Air Flow Compressor Rotors Turbulent Flow Acoustic Measurement Subsonic Speed Broadband Flow Characteristics Turbomachinery Noise Spectra Axial Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
