Fast trailed and bound vorticity modeling of swept wind turbine blades

Ang Li; Georg Pirrung; Helge Aa Madsen; Mac Gaunaa; Frederik Zahle

doi:10.1088/1742-6596/1037/6/062012

Fast trailed and bound vorticity modeling of swept wind turbine blades

Ang Li^*, Georg Pirrung, Helge Aa Madsen, Mac Gaunaa, Frederik Zahle

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › Research › peer-review

449 Downloads (Pure)

Abstract

Passive load alleviation can be achieved through geometric bend-twist coupling, for example, by sweeping the blade backwards. The influence of the blade sweep on the trailing vorticity and bound vorticity is not modelled in the current fast aeroelastic wind turbine codes suitable for certification. A near wake trailed vorticity model which was coupled with a blade element momentum theory based aerodynamic model has been modified to take into account the blade sweep. The extended model is compared with the original near wake model, a blade element momentum (BEM) model and full rotor computational fluid dynamics (CFD) results for the modified IEA 10MW reference wind turbines. The steady-state loadings calculated from the extended model are in better agreements with CFD compared to the original model and the BEM for four different swept blades. It is also shown that the influence of the blade sweep on normal loading is not correctly modelled by BEM and this error will be inherited to the near wake model results. Thus, further modification to BEM will likely improve the predicted normal loading for swept blades, even if no near wake model is used.

Original language	English
Article number	062012
Book series	Journal of Physics: Conference Series
Volume	1037
Issue number	6
Number of pages	11
ISSN	1742-6596
DOIs	https://doi.org/10.1088/1742-6596/1037/6/062012
Publication status	Published - 2018
Event	The Science of Making Torque from Wind 2018 - Politecnico di Milano (POLIMI), Milan, Italy Duration: 20 Jun 2018 → 22 Jun 2018 Conference number: 7 http://www.torque2018.org/

Conference

Conference	The Science of Making Torque from Wind 2018
Number	7
Location	Politecnico di Milano (POLIMI)
Country/Territory	Italy
City	Milan
Period	20/06/2018 → 22/06/2018
Internet address	http://www.torque2018.org/

Bibliographical note

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

Access to Document

10.1088/1742-6596/1037/6/062012

Li 2018 JFinal published version, 597 KB

OpenUrl availability

Full text

SmartTip: Smart Tip
Barlas, A. (Project Manager), McWilliam, M. (Project Participant), González Horcas, S. (Project Participant), Zahle, F. (Project Participant), Verelst, D. R. (Project Participant), Pirrung, G. (Project Participant), Ramos García, N. (Project Participant), Castro Ardila, O. G. (Project Participant) & Andersen, T. (Project Participant)
01/12/2017 → 30/11/2020
Project: Research

File

Cite this

@inproceedings{494abb41f86c4049b37901beb8fac8cd,

title = "Fast trailed and bound vorticity modeling of swept wind turbine blades",

abstract = " Passive load alleviation can be achieved through geometric bend-twist coupling, for example, by sweeping the blade backwards. The influence of the blade sweep on the trailing vorticity and bound vorticity is not modelled in the current fast aeroelastic wind turbine codes suitable for certification. A near wake trailed vorticity model which was coupled with a blade element momentum theory based aerodynamic model has been modified to take into account the blade sweep. The extended model is compared with the original near wake model, a blade element momentum (BEM) model and full rotor computational fluid dynamics (CFD) results for the modified IEA 10MW reference wind turbines. The steady-state loadings calculated from the extended model are in better agreements with CFD compared to the original model and the BEM for four different swept blades. It is also shown that the influence of the blade sweep on normal loading is not correctly modelled by BEM and this error will be inherited to the near wake model results. Thus, further modification to BEM will likely improve the predicted normal loading for swept blades, even if no near wake model is used. ",

author = "Ang Li and Georg Pirrung and Madsen, {Helge Aa} and Mac Gaunaa and Frederik Zahle",

note = "Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.; The Science of Making Torque from Wind 2018, TORQUE 2018 ; Conference date: 20-06-2018 Through 22-06-2018",

year = "2018",

doi = "10.1088/1742-6596/1037/6/062012",

language = "English",

volume = "1037",

journal = "Journal of Physics: Conference Series",

issn = "1742-6596",

publisher = "IOP Publishing",

number = "6",

url = "http://www.torque2018.org/",

}

TY - GEN

T1 - Fast trailed and bound vorticity modeling of swept wind turbine blades

AU - Li, Ang

AU - Pirrung, Georg

AU - Madsen, Helge Aa

AU - Gaunaa, Mac

AU - Zahle, Frederik

N1 - Conference code: 7

PY - 2018

Y1 - 2018

N2 - Passive load alleviation can be achieved through geometric bend-twist coupling, for example, by sweeping the blade backwards. The influence of the blade sweep on the trailing vorticity and bound vorticity is not modelled in the current fast aeroelastic wind turbine codes suitable for certification. A near wake trailed vorticity model which was coupled with a blade element momentum theory based aerodynamic model has been modified to take into account the blade sweep. The extended model is compared with the original near wake model, a blade element momentum (BEM) model and full rotor computational fluid dynamics (CFD) results for the modified IEA 10MW reference wind turbines. The steady-state loadings calculated from the extended model are in better agreements with CFD compared to the original model and the BEM for four different swept blades. It is also shown that the influence of the blade sweep on normal loading is not correctly modelled by BEM and this error will be inherited to the near wake model results. Thus, further modification to BEM will likely improve the predicted normal loading for swept blades, even if no near wake model is used.

AB - Passive load alleviation can be achieved through geometric bend-twist coupling, for example, by sweeping the blade backwards. The influence of the blade sweep on the trailing vorticity and bound vorticity is not modelled in the current fast aeroelastic wind turbine codes suitable for certification. A near wake trailed vorticity model which was coupled with a blade element momentum theory based aerodynamic model has been modified to take into account the blade sweep. The extended model is compared with the original near wake model, a blade element momentum (BEM) model and full rotor computational fluid dynamics (CFD) results for the modified IEA 10MW reference wind turbines. The steady-state loadings calculated from the extended model are in better agreements with CFD compared to the original model and the BEM for four different swept blades. It is also shown that the influence of the blade sweep on normal loading is not correctly modelled by BEM and this error will be inherited to the near wake model results. Thus, further modification to BEM will likely improve the predicted normal loading for swept blades, even if no near wake model is used.

U2 - 10.1088/1742-6596/1037/6/062012

DO - 10.1088/1742-6596/1037/6/062012

M3 - Conference article

SN - 1742-6596

VL - 1037

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 6

M1 - 062012

T2 - The Science of Making Torque from Wind 2018

Y2 - 20 June 2018 through 22 June 2018

ER -

Fast trailed and bound vorticity modeling of swept wind turbine blades

Abstract

Conference

Bibliographical note

Access to Document

OpenUrl availability

Fingerprint

Projects

SmartTip: Smart Tip

Cite this