Lagrangian actuator model for wind turbine wake aerodynamics

Weiqi Liu, Jian Shi*, Hailong Chen, Hengxu Liu, Zi Lin, Lingling Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

As a continuation of authors’ previous work, this work extends and hackles the numerical method for wind turbine wakes based on the vortex method, and proposes the Lagrangian actuator model (LAM) which is used for the representation of the wind turbine rotor under the Lagarangian framework. This paper provides two examples of the LAM, the Lagrangian actuator line (LAL) model and the Lagrangian actuator disc (LAD) model, and constructs matching numerical methods for wake predictions respectively. Those methods have high computation efficiency, and the results coincide with the wind tunnel test data well. Moreover, based on that, a vorticity description framework centered on vortex geometric structures is established to illustrate wind turbine wake phenomena and explore the wake evolution mechanism.
Original languageEnglish
Article number121074
Number of pages11
JournalEnergy
Volume232
Early online date1 Jun 2021
DOIs
Publication statusE-pub ahead of print - 1 Jun 2021

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