A review on two methods to detect spatio-temporal patterns in wind turbines

Soledad Le Clainche*, José M. Vega, Xuerui Mao, Esteban Ferrer

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

1 Citation (Scopus)

Abstract

This Chapter presents a review on two methods for the analysis of flow structures in wind turbines. These methods are higher order dynamic mode decomposition and spatio-temporal Koopman decomposition, which are highly efficient tools suitable for the detection of spatio-temporal patterns in complex flows. These two techniques have been applied to detect the main flow structures in a cross-flow wind turbine in turbulent regime, and in an horizontal wind turbine, which is laminar in the near field but transitioning to turbulence in the far field. Using these methods, a reduced number of traveling waves which are responsible for triggering the flow transition, are able to describe the aforementioned complex flows.

Original languageEnglish
Title of host publicationSpringer Tracts in Mechanical Engineering
PublisherSpringer International Publishing
Pages83-93
Number of pages11
DOIs
Publication statusPublished - 2019
Externally publishedYes

Publication series

NameSpringer Tracts in Mechanical Engineering
ISSN (Print)2195-9862
ISSN (Electronic)2195-9870

Keywords

  • DMD
  • Flow structures
  • HODMD
  • STKD
  • Wind turbines

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