Lagrangian actuator model for wind turbine wake aerodynamics

As a continuation of authors’ previous work, this work extends and hackles the numerical method for wind turbine wakes based on vortex method, proposes Lagrangian actuator model (LAM) which is used representation rotor under Lagarangian framework. This paper provides two examples LAM, line (LAL) disc (LAD) model, constructs matching methods wake predictions respectively. Those have high computation efficiency, results coincide with tunnel test data well. Moreover, that, vorticity description framework centered geometric structures established to illustrate phenomena explore evolution mechanism.