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Dynamic Stall

  • Ricardo Santos Pereira*
  • *Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volume › Chapter › Scientific › peer-review

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Abstract

Dynamic stall is a complex fluid dynamics problem that occurs on an airfoil during rapid, transient motion in which the angle of attack goes beyond the static stall angle. Since the instantaneous sectional aerodynamic loads may surpass the static values, dynamic stall events often dictate the operational load range in several systems, including wind energy machines. Typically the phenomenon of dynamic stall is modelled using semi-empirical or the so-called engineering approaches, derived from 2D wind tunnel tests. However, extrapolation to wind energy machines’ behaviour must be done carefully as real conditions of DS occurrence arise as a combination of complex, interacting phenomena, including 3D aerodynamic features (e.g. due to yaw misalignment and rotational augmentation) and also blade structural vibrations.

Original languageEnglish
Title of host publicationHandbook of Wind Energy Aerodynamics
Subtitle of host publicationWith 678 Figures and 33 Tables
PublisherSpringer
Pages331-351
Number of pages21
ISBN (Electronic)9783030313074
ISBN (Print)9783030313067
DOIs
Publication statusPublished - 2022

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • Airfoil aerodynamics
  • Dynamic stall
  • Unsteady aerodynamics

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