Aerodynamic design optimization of wind turbine airfoils under aleatory and epistemic uncertainty

Research output: Contribution to conferencePaper

Abstract

This paper presents different approaches to optimize wind turbine airfoils in an uncertain scenario. The approaches are specifically applied to the aerodynamic design optimization of a wind turbine airfoil accounting for the uncertainty in setting up the XFOIL's NCRIT constant: a parameter that is considered affected by a chain of aleatory and epistemic uncertainty. Subject to a set of aerodynamic and structural constraints, the uncertain response of the airfoil is optimized by means of both probability- and imprecise probability-based approaches. These solutions are compared with a reference airfoil optimized with a conventional design approach, in which the treatment of uncertainty is carried out in a simplistic fashion. Once evaluated in the probabilistic scenario, the airfoil designed with the conventional approach still achieves the largest aerodynamic efficiency mean. This airfoil is however affected by the largest performance sensitivity to NCRIT variations. The airfoils optimized by means of uncertainty-based approaches instead achieve larger performance robustness and reliability than the airfoil optimized with the conventional approach.

Conference

ConferenceThe Science of Making Torque from Wind 2018
Abbreviated titleTORQUE 2018
CountryItaly
CityMilan
Period20/06/1822/06/18
Internet address

Fingerprint

Airfoils
Wind turbines
Aerodynamics
Design optimization
Uncertainty

Keywords

  • aerodynamic design
  • wind turbine
  • airfoils
  • uncertainty
  • optimization
  • wind energy
  • reliability

Cite this

Caboni, M., Minisci, E., & Riccardi, A. (Accepted/In press). Aerodynamic design optimization of wind turbine airfoils under aleatory and epistemic uncertainty. Paper presented at The Science of Making Torque from Wind 2018, Milan, Italy.
Caboni, M. ; Minisci, E. ; Riccardi, A. / Aerodynamic design optimization of wind turbine airfoils under aleatory and epistemic uncertainty. Paper presented at The Science of Making Torque from Wind 2018, Milan, Italy.10 p.
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title = "Aerodynamic design optimization of wind turbine airfoils under aleatory and epistemic uncertainty",
abstract = "This paper presents different approaches to optimize wind turbine airfoils in an uncertain scenario. The approaches are specifically applied to the aerodynamic design optimization of a wind turbine airfoil accounting for the uncertainty in setting up the XFOIL's NCRIT constant: a parameter that is considered affected by a chain of aleatory and epistemic uncertainty. Subject to a set of aerodynamic and structural constraints, the uncertain response of the airfoil is optimized by means of both probability- and imprecise probability-based approaches. These solutions are compared with a reference airfoil optimized with a conventional design approach, in which the treatment of uncertainty is carried out in a simplistic fashion. Once evaluated in the probabilistic scenario, the airfoil designed with the conventional approach still achieves the largest aerodynamic efficiency mean. This airfoil is however affected by the largest performance sensitivity to NCRIT variations. The airfoils optimized by means of uncertainty-based approaches instead achieve larger performance robustness and reliability than the airfoil optimized with the conventional approach.",
keywords = "aerodynamic design, wind turbine, airfoils, uncertainty, optimization, wind energy, reliability",
author = "M. Caboni and E. Minisci and A. Riccardi",
year = "2018",
month = "5",
day = "29",
language = "English",
note = "The Science of Making Torque from Wind 2018, TORQUE 2018 ; Conference date: 20-06-2018 Through 22-06-2018",
url = "http://www.torque2018.org/",

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Caboni, M, Minisci, E & Riccardi, A 2018, 'Aerodynamic design optimization of wind turbine airfoils under aleatory and epistemic uncertainty' Paper presented at The Science of Making Torque from Wind 2018, Milan, Italy, 20/06/18 - 22/06/18, .

Aerodynamic design optimization of wind turbine airfoils under aleatory and epistemic uncertainty. / Caboni, M.; Minisci, E.; Riccardi, A.

2018. Paper presented at The Science of Making Torque from Wind 2018, Milan, Italy.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Aerodynamic design optimization of wind turbine airfoils under aleatory and epistemic uncertainty

AU - Caboni, M.

AU - Minisci, E.

AU - Riccardi, A.

PY - 2018/5/29

Y1 - 2018/5/29

N2 - This paper presents different approaches to optimize wind turbine airfoils in an uncertain scenario. The approaches are specifically applied to the aerodynamic design optimization of a wind turbine airfoil accounting for the uncertainty in setting up the XFOIL's NCRIT constant: a parameter that is considered affected by a chain of aleatory and epistemic uncertainty. Subject to a set of aerodynamic and structural constraints, the uncertain response of the airfoil is optimized by means of both probability- and imprecise probability-based approaches. These solutions are compared with a reference airfoil optimized with a conventional design approach, in which the treatment of uncertainty is carried out in a simplistic fashion. Once evaluated in the probabilistic scenario, the airfoil designed with the conventional approach still achieves the largest aerodynamic efficiency mean. This airfoil is however affected by the largest performance sensitivity to NCRIT variations. The airfoils optimized by means of uncertainty-based approaches instead achieve larger performance robustness and reliability than the airfoil optimized with the conventional approach.

AB - This paper presents different approaches to optimize wind turbine airfoils in an uncertain scenario. The approaches are specifically applied to the aerodynamic design optimization of a wind turbine airfoil accounting for the uncertainty in setting up the XFOIL's NCRIT constant: a parameter that is considered affected by a chain of aleatory and epistemic uncertainty. Subject to a set of aerodynamic and structural constraints, the uncertain response of the airfoil is optimized by means of both probability- and imprecise probability-based approaches. These solutions are compared with a reference airfoil optimized with a conventional design approach, in which the treatment of uncertainty is carried out in a simplistic fashion. Once evaluated in the probabilistic scenario, the airfoil designed with the conventional approach still achieves the largest aerodynamic efficiency mean. This airfoil is however affected by the largest performance sensitivity to NCRIT variations. The airfoils optimized by means of uncertainty-based approaches instead achieve larger performance robustness and reliability than the airfoil optimized with the conventional approach.

KW - aerodynamic design

KW - wind turbine

KW - airfoils

KW - uncertainty

KW - optimization

KW - wind energy

KW - reliability

UR - http://www.torque2018.org/

M3 - Paper

ER -

Caboni M, Minisci E, Riccardi A. Aerodynamic design optimization of wind turbine airfoils under aleatory and epistemic uncertainty. 2018. Paper presented at The Science of Making Torque from Wind 2018, Milan, Italy.