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Analysis of the Boundary Layer on a Highly Flexible Wing based on Infrared Thermography Measurements

Mertens, Christoph and Guerra, Adrian Grille and van Oudheusden, Bas and Fehrs, Michael and Ritter, Markus Raimund (2022) Analysis of the Boundary Layer on a Highly Flexible Wing based on Infrared Thermography Measurements. STAB-Symposium 2022, 09.-10.11.2022, Berlin, Deutschland.

Full text not available from this repository.

Official URL: https://www.dlr.de/as/Portaldata/5/Resources/dokumente/veranstaltungen/stab_workshop/Jahresbericht2022.pdf

Abstract

The effects of the wing shape distortion on the boundary layer of a highly flexible wing are analyzed in a wind tunnel experiment using infrared thermography measurements. Considerable differences in the boundary layer flow are observed for the sections of the wing near the ribs, where the design shape of the wing is preserved, and in between the ribs. At the spanwise locations between the ribs, the sectional wing shape distorts and triggers the boundary layer transition to turbulence close to the leading edge. The differences between the design behavior of the wing and the experimental results of the boundary layer analysis demonstrate the need for considering the shape deformation and its effects on the boundary layer flow when designing highly flexible wings.

Item URL in elib:https://elib.dlr.de/190265/
Document Type:Conference or Workshop Item (Speech)
Title:Analysis of the Boundary Layer on a Highly Flexible Wing based on Infrared Thermography Measurements
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Mertens, ChristophDelft University of Technology, Faculty of Aerospace Engineering, The NetherlandsUNSPECIFIED
Guerra, Adrian GrilleDelft University of Technology, Faculty of Aerospace Engineering, The NetherlandsUNSPECIFIED
van Oudheusden, BasDelft University of Technology, Faculty of Aerospace Engineering, The NetherlandsUNSPECIFIED
Fehrs, MichaelMichael.Fehrs (at) dlr.dehttps://orcid.org/0000-0002-8137-9758
Ritter, Markus RaimundMarkus.Ritter (at) dlr.dehttps://orcid.org/0000-0003-3828-0397
Date:November 2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 20-21
Series Name:Jahresbericht 2022 zum 23. DGLR-Fachsymposium
Status:Published
Keywords:Pazy wing, laminar separation bubble, differential infrared thermography, wind tunnel test
Event Title:STAB-Symposium 2022
Event Location:Berlin, Deutschland
Event Type:national Conference
Event Dates:09.-10.11.2022
Organizer:Deutsche Strömungsmechanische Arbeitsgemeinschaft (STAB)
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 - Digital Technologies
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Aeroelastic Simulation
Institute of Aeroelasticity > Loads Analysis and Aeroelastic Design
Deposited By: Fehrs, Michael
Deposited On:25 Nov 2022 13:13
Last Modified:25 Nov 2022 13:13

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