| Autor: |
Christian Masson, Philippe Brodeur, Christophe Sibuet-Watters |
| Rok vydání: |
2006 |
| Předmět: |
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| Zdroj: |
44th AIAA Aerospace Sciences Meeting and Exhibit. |
| Popis: |
This paper presents a numerical method that predicts the wind flow over highly complex terrain on a small length scale resolution. The wind speed profile in the first 800 meters of the atmospheric boundary layer with neutral thermal stability is described accurately over a real mountainous terrain covered with a dense forest. The flowfield is resolved with the Reynolds’ averaged Navier-Stokes equations complemented by the k- turbulence model, with special treatment of the ground boundary to account for the very large roughness height observed on site. A nesting technique is implemented in the vicinity of the actual site to get a precise solution. The computational model is solved using FLUENT and is validated using a set of field data collected from four met masts during a 10 month period. The CFD method is also compared to the WAsP approach. The results presented in the paper include velocity profiles observed at the met masts for dierent wind orientation. When the experimental roughness lengths observed at each of the met masts are similar, the velocity profiles observed are well predicted by the numerical method. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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