TITLE : WIND-TURBINES WAKES ON A COMPLEX PLANTED TERRAIN

BY : A P Khrupov and S V Zhubrin, CHAM-MEI, Moscow, Russia

FOR : Environmental agency

PHOENICS version: 2.1

DATE : 1994

DETAILS :

This case shows the influence of the wind directions and terrain topology covered by widely-spaced trees on the wind velocity distributions and wake fields generated by on-line wind turbines located on the complex terrain of Valaam island of Ladoga lake in Nothern Russia.

The standart K-E modelof turbulence is modified to take into account the plant- airflow interactions resulting in momentum sinks. The corresponding GROUND codings are made by way of PLANT option. The main details can be found in paper by S.Zhubrin et al."Practical evaluation of turbulence models applied to on-line wind turbines on a complex terrain", presented at International Seminar of AirFlows on Complex Terrain, University of Karlsruhe, February 1995

Pictures are as follows :

• Terrain topology and wind turbine locations.
• Sub-domain under consideration.
• South wind:velocity vectors at lateral planes.
• South wind:vectors at the summit plane.
• South-west wind: velocity vectors at lateral planes.
• South wind: velocity magnitude contours at 12.5m plane.
• South-west wind: velocity magnitude contours at 12.5m plane.
• South wind: velocity magnitude contours at 20.5m plane.
• South-west wind: velocity magnitude contours at 20.5m plane.