Development of a multi-layer atmospheric perturbation model

10 Dec 2025, 10:15
25m
U-Residence (Vrije Universiteit Brussels (VUB))

U-Residence

Vrije Universiteit Brussels (VUB)

VUB Main Campus Etterbeek Pleinlaan 2 1050 Elsene

Speaker

Theo Delvaux (KU Leuven)

Description

Recent research has pointed out that wind farms can interact with the atmosphere at scales much larger than the turbine size. Although these large-scale effects are significant, they cannot be captured by the widely used engineering wake models. To bridge this gap, Allaerts & Meyers [1] developed an Atmospheric Perturbation Model (APM) that accounts for both turbine-scale and mesoscale effects on power predictions. The original model represents the atmospheric boundary layer as two sub-layers topped by the free atmosphere. This work aims to generalize the APM to a user-defined number of sub-layers, and to inform a simple physics-based procedure to define them. Preliminary results have shown that the improved model allows to study a wider range of atmospheric conditions. The current focus is placed on testing the performance of the model for realistic conditions provided by RMI (ECMWF data of the Belgian offshore zone).

[1] Allaerts & Meyers 2019, J. Fluid. Mech vol 862

Primary author

Theo Delvaux (KU Leuven)

Co-authors

Prof. Johan Meyers (KU Leuven) Mr Koen Devesse (KU Leuven)

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