A simple model of the wind turbine induction zone derived from numerical simulations

Friday 25 Aug 17


Niels Troldborg
Senior Researcher
DTU Wind
+45 46 77 50 87

A simple induction model characterizing the evolution of the wind flow approaching a wind turbine rotor is presented - along with the numerical simulation results that allowed to derive the model - in a scientific article by Niels Troldborg and Alexander R. Meyer Forsting. The article is published in the Wind Energy journal. The article can be read online at: 

Paper abstract:

The induction zone in front of different wind turbine rotors is studied by means of steady-state Navier-Stokes simulations combined with an actuator disk approach. It is shown that, for distances beyond 1 rotor radius upstream of the rotors, the induced velocity is self-similar and independent of the rotor geometry. On the basis of these findings, a simple analytical model of the induction zone of wind turbines is proposed.