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Wind tunnel measurements of the tower shadow on models of the erda/nasa 100 kw wind turbine tower
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Wagner, L. H. Savino, J. M. |
| Copyright Year | 1976 |
| Description | Detailed wind speed profile measurements were made in the wake of 1/25 scale and 1/48 scale tower models to determine the magnitude of the speed reduction (the tower shadow). The 1/25 scale tower modeled closely the actual wind turbine including the service stairway and the equipment elevator rails on one face. The 1/48 scale model was made of all tubular members. Measurements were made on the 1/25 scale model with and without the stairway and elevator rails, and on the 1/48 all tube model without stairs and rails. The test results show that the stairs and rails were a major source of wind flow blockage. The all tubular 1/48 scale tower was found to offer less resistance to the wind than the 1/25 scale model that contained a large number of square sections. Shadow photos are included to show the extent of the blockage offered to the wind from various directions. |
| File Size | 12890286 |
| Page Count | 38 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770006591 |
| Archival Resource Key | ark:/13960/t81k46569 |
| Language | English |
| Publisher Date | 1976-11-01 |
| Access Restriction | Open |
| Subject Keyword | Energy Production And Conversion Towers Scale Models Wind Tunnel Tests Wind Velocity Wind Profiles Drag Measurement Windpowered Generators Turbines Energy Conversion Efficiency Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
