Loading...
Please wait, while we are loading the content...
Similar Documents
The nasa-lerc wind turbine sound prediction code (Document No: 19810013008)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Viterna, L. A. |
| Copyright Year | 1981 |
| Description | Development of the wind turbine sound prediction code began as part of an effort understand and reduce the noise generated by Mod-1. Tone sound levels predicted with this code are in good agreement with measured data taken in the vicinity Mod-1 wind turbine (less than 2 rotor diameters). Comparison in the far field indicates that propagation effects due to terrain and atmospheric conditions may amplify the actual sound levels by 6 dB. Parametric analysis using the code shows that the predominant contributors to Mod-1 rotor noise are (1) the velocity deficit in the wake of the support tower, (2) the high rotor speed, and (3) off-optimum operation. |
| File Size | 403766 |
| Page Count | 9 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19810013008 |
| Archival Resource Key | ark:/13960/t1kh5dd4p |
| Language | English |
| Publisher Date | 1981-01-01 |
| Access Restriction | Open |
| Subject Keyword | Energy Production And Conversion Sound Propagation Noise Reduction Windpower Utilization Noise Measurement Windpowered Generators Turbines Noise Prediction Computer Programs Sound Pressure Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
