Effect of wind-turbine surface loading on power resources in LES of large wind farms
As wind power grows as an important contributor to the worldwide overall energy portfolio, wind farms will cover increasingly larger surface areas. With the characteristic height of the atmospheric boundary layer (ABL) of about 1 km, wind farms with horizontal extents exceeding 10–20 km may therefore approach the asymptotic limit of ‘infinite’ wind farms, and the boundary layer flow may approach the fully developed regime. Envisioning such large-scale implementations calls for advancements in our understanding of the detailed interactions between wind turbines and the atmospheric surface layer. In the past, a number of studies have focussed on the effect wind-turbine arrays on the WTABL using elements of momentum theory, potential flow, and the superposition of wakes of individual turbines (cf. Lissaman 1979, and Frandsen 1992). Several recent studies have focused on such dynamics of Wind Turbine Array Boundary Layers (WTABL) (Calaf et al., 2010; Meyers and Meneveau, 2010; Cal et al., 2010).
KeywordsWind Turbine Large Eddy Simulation Atmospheric Boundary Layer Wind Farm Atmospheric Surface Layer
Unable to display preview. Download preview PDF.
- 1.Lissaman, P.B.S.: Energy effectiveness of arbitrary arrays of wind turbines. AIAA Paper 79-0114 (1979) Google Scholar
- 4.Meyers, J., Meneveau, C.: Large eddy simulations of large wind-turbine arrays in the atmospheric boundary layer. AIAA Paper 2010-827 (2010) Google Scholar
- 7.Tennekes, H., Lumley, J.L.: A first Course in Turbulence. MIT Press, Massachusetts (1972) Google Scholar
- 8.Meyers, J., Meneveau, C.: Optimal turbine spacing in fully developed wind-farm boundary layers. Preprint submitted to Wind Energy (2010) Google Scholar