Actuator-Line Model (ALM) for Wake Effect

Paper 1: H. Meng, F.S. Lien, L. Li (2018), "Elastic Actuator Line Modelling for Wake-Induced Fatigue Analysis of Horizontal Axis Wind Turbine Blade", Renewable Energy, Vol. 116, pp. 423-43.

Paper 2: H. Meng, F.S. Lien, G. Glinka, L. Li, J. Zhang, "Study on Wake-Induced Fatigue on Wind Turbine Blade Based on Elastic Actuator Line Model and Two Dimensional Finite Element Model" (2017), NAWEA 2017 Symposium, 26-29 September 2017, Ames, Iowa, USA.

Actuator line model

Actuator line model
Actuator line model: Flowchart
Vortex structures

 Wake effect

Wake effect
Horns Rev Wind Farm

Krogstad wind tunnel experiment II

Tandem-wind-turbine experiment
Expt: F. Pierella, P. A. Krogstad, Blind Test 2 calculations for two in-line model wind turbines where the downstream turbine operates at various rotational speeds., Renewable energy. 70(2014). 62–77.
Tandem-wind-turbine experiment: Velocity profiles
Staggered-wind-turbine experiment: velocity profile

 Comparison between LES and RANS

Comparison between LES and RANS

 Wind farm simulation: actuator line + precursor method

Wind farm simulation: actuator line + precursor method
Wind farm simulation: actuator line + precursor method
Wind farm simulation: actuator line + precursor method