In this paper, wake interaction between two wind turbines
is analyzed using experimental and numerical
approaches. Full-scale wake measurements are
conducted at Tjæreborg wind farm and are obtained
using a continuous wave lidar mounted on the back
of the nacelle of a 2MW NM80 turbine. Numerical
analyses are conducted for two double wake cases
characterized by different turbine spacing, using the
in-house EllipSys3D flow solver. Large Eddy Simulation
and Actuator Line technique are used for modeling
the rotor and the flow field. 10-minute average
streamwise velocity and turbulence level are compared,
and good agreement is seen between the
measurements and the computations despite of a
lateral offset and other discrepancies due to uncertainties
on the measured inflow conditions and lidar
mounting alignment.