Brief communication: Wind-speed-independent actuator disk control for faster annual energy production calculations of wind farms using computational fluid dynamics

van der Laan, Maarten Paul; Andersen, Søren Juhl; Réthoré, Pierre-Elouan

A simple wind-speed-independent actuator disk control method is proposed that can be applied to speed up annual energy production calculations of wind farms using Reynolds-averaged Navier–Stokes simulations. The new control method allows the user to simulate the effect of different wind speeds in one simulation by scaling a calibrated thrust coefficient curve, while keeping the inflow constant. Since the global flow is not changed, only the local flow around the actuator disks need be recalculated from a previous converged result, which reduces the number of required iterations and computational effort by a factor of about 2–3.

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van der Laan, Maarten Paul / Andersen, Søren Juhl / Réthoré, Pierre-Elouan: Brief communication: Wind-speed-independent actuator disk control for faster annual energy production calculations of wind farms using computational fluid dynamics. 2019. Copernicus Publications.

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Rechteinhaber: Maarten Paul van der Laan et al.

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