Large-Eddy Simulation of turbine wake in complex terrain

Wake Conference 2017

Berg, J.^1 ; Troldborg, N.^1 ; Sorensen, N.N.^1 ; Patton, E.G.^2 ; Sullivan, P.P.^2

DTU Wind Energy, Frederiksborgvej 399, Roskilde

4000, Denmark^1

National Center for Atmospheric Research US., Boulder

CO, United States^2

关键词: Complex terrains;    Induction factors;    Recirculation zones;    Turbulent kinetic energy;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/854/1/012003/pdf
DOI  :  10.1088/1742-6596/854/1/012003

来源: IOP

【 摘 要 】

We present Large-Eddy Simulation results of a turbine wake in realistic complex terrain with slopes above 0.5. By comparing simulations including and without the wind turbine we can estimate the induction factor, a, and we show how the presence of a strong recirculation zone in the terrain dictates the positioning of the wake. This last finding is in contrast to what would happen in gentle terrain with no substantial increase of turbulent kinetic energy in the terrain induced wakes.