elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Experimental Analysis of the Performance of a Wind-Turbine Airfoil Using Temperature-Sensitive Paint

Costantini, Marco and Fuchs, Carsten and Henne, Ulrich and Klein, Christian and Ondrus, Vladimir and Bruse, Martin and Löhr, Markus and Jacobs, Markus (2021) Experimental Analysis of the Performance of a Wind-Turbine Airfoil Using Temperature-Sensitive Paint. AIAA Journal, 59 (11), pp. 4449-4464. American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.J060039. ISSN 0001-1452.

[img] PDF - Postprint version (accepted manuscript)
1MB

Official URL: https://doi.org/10.2514/1.J060039

Abstract

Knowledge on the boundary-layer transition location at large chord Reynolds numbers is essential to evaluate the performance of airfoils designed for modern wind-turbine rotor blades. In the present work, a temperature-sensitive paint was used to systematically study boundary-layer transition on the suction side of a DU 91-W2-250 airfoil. The experiments were performed in the High-Pressure Wind Tunnel Göttingen at chord Reynolds numbers up to 12 million and angles of attack from −14 to 20°. The coefficients of airfoil lift, drag, and pitching moment were also obtained after integration of the pressure distributions measured on the surface and in the wake of the wind-tunnel model. The global information obtained via temperature-sensitive paint not only enabled the analysis of the change in the transition location with varying angle of attack and chord Reynolds number, but also provided an explanation for the evolution of the aerodynamic coefficients measured at stall and poststall conditions. The stability of the laminar boundary layers investigated in the experiments was analyzed according to linear stability theory. The results of the stability computations supported the experimentally observed variations in the transition location. The amplification factors of boundary-layer disturbances at transition were also determined by correlating the experimental and numerical results.

Item URL in elib:https://elib.dlr.de/144977/
Document Type:Article
Additional Information:Presented as Paper 2019-0800, at the AIAA SciTech 2019 Forum, San Diego, CA, January 7–11, 2019; received 24 September 2020; revision received 31 March 2021; accepted for publication 31 March 2021; published online 16 August 2021.
Title:Experimental Analysis of the Performance of a Wind-Turbine Airfoil Using Temperature-Sensitive Paint
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Costantini, MarcoUNSPECIFIEDhttps://orcid.org/0000-0003-0642-0199134173797
Fuchs, CarstenUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Henne, UlrichUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Klein, ChristianUNSPECIFIEDhttps://orcid.org/0000-0001-7592-6922136996382
Ondrus, VladimirUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bruse, MartinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Löhr, MarkusUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jacobs, MarkusUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:16 August 2021
Journal or Publication Title:AIAA Journal
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:59
DOI:10.2514/1.J060039
Page Range:pp. 4449-4464
Editors:
EditorsEmailEditor's ORCID iDORCID Put Code
UNSPECIFIEDAIAAUNSPECIFIEDUNSPECIFIED
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Series Name:AIAA Journal
ISSN:0001-1452
Status:Published
Keywords:Wind Turbine, Temperature-Sensitive Paint, Transition, Separation, Aerodynamic Performance
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Efficient Vehicle
DLR - Research area:Aeronautics
DLR - Program:L EV - Efficient Vehicle
DLR - Research theme (Project):L - Virtual Aircraft and  Validation
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Experimental Methods, GO
German-Dutch Windtunnels > Business Unit Göttingen und Köln (GUK)
Deposited By: Micknaus, Ilka
Deposited On:26 Nov 2021 10:13
Last Modified:16 Jun 2023 09:53

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.