Abstract
The height and rotor diameter of modern wind turbines are so extensive, that the wind conditions they encounter often are well above the surface
layer, where traditionally it is assumed that wind direction and turbulent fluxes are constant with respect to height, if the surface is homogenous.
Deviations from the requirement of homogeneity are often the focus of micro-scale studies in forested areas. Yet, to explain the wind climate in the
relevant height range for turbines, it is necessary to also account for the length scales that are important parameters for the meso-scale flow. These
length scales are the height of the planetary boundary layer and the Monin-Obukhov length, which both are related to the energy balance of the
surface. Examples of important micro- and meso-scale effects of forested terrain are shown using data and model results from recent and ongoing
experiments. For micro-scale modeling, the issue of model resolution is discussed.
Original language | English |
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Title of host publication | Proceedings |
Publisher | European Wind Energy Association (EWEA) |
Publication date | 2011 |
Publication status | Published - 2011 |
Event | EWEA Annual Event 2011 - Brussels, Belgium Duration: 14 Mar 2011 → 17 Mar 2011 http://www.ewec2011.info/ |
Conference
Conference | EWEA Annual Event 2011 |
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Country/Territory | Belgium |
City | Brussels |
Period | 14/03/2011 → 17/03/2011 |
Internet address |
Keywords
- Aeroelastic design methods