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Research Initiative for Numerical and Experimental Studies on High-Speed Stall of Civil Aircraft

Lutz, Thorsten and Kleinert, Johannes and Waldmann, Andreas and Koop, Lars and Yorita, Daisuke and Dietz, Guido and Schulz, Matthias (2023) Research Initiative for Numerical and Experimental Studies on High-Speed Stall of Civil Aircraft. Journal of Aircraft, 60 (3), pp. 623-636. American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.C036829. ISSN 1533-3868.

Full text not available from this repository.

Official URL: https://doi.org/10.2514/1.C036829


The aerodynamics of transport aircraft at the borders of the flight envelope is characterized by complex interactions and nonlinear, unsteady flow phenomena. The underlying physical mechanisms are not fully understood, and a prediction of aerodynamic properties, transient loads, and aeroelastic behavior is a major challenge that requires the use of sophisticated numerical models and dedicated experiments. A new research initiative investigates the three-dimensional buffet mechanisms at high-speed stall, the interaction of the wing wake with the empennage, and the influence of ultra-high-bypass-ratio-type engines on these phenomena. It comprises unsteady pressure-sensitive paint surface pressure and time-resolved particle image velocimetry flowfield measurements carried out in the cryogenic European Transonic Windtunnel. The experiments are conducted at different Mach numbers and cover a broad Reynolds number regime up to 25×106 using the generic Airbus XRF1 configuration as a reference. This paper explains the rationale of the research initiative, introduces the planned test entries and test conditions, and presents selected results of the first measurement campaign and associated numerical analyses by means of the computational fluid dynamics code TAU, including usage of locally scale resolving simulations. An analysis of numerical and experimental results is presented for a high incidence transonic condition that serves to discuss the topology of wing root flow separation, the evolution of the associated wake, and its interaction with the empennage.

Item URL in elib:https://elib.dlr.de/194772/
Document Type:Article
Additional Information:Published Online:27 Nov 2022
Title:Research Initiative for Numerical and Experimental Studies on High-Speed Stall of Civil Aircraft
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Lutz, ThorstenUniversity of Stuttgart, 70569 Stuttgart, GermanyUNSPECIFIEDUNSPECIFIED
Kleinert, JohannesUniversity of Stuttgart, 70569 Stuttgart, GermanyUNSPECIFIEDUNSPECIFIED
Waldmann, AndreasUNSPECIFIEDhttps://orcid.org/0000-0002-0226-6705UNSPECIFIED
Yorita, DaisukeUNSPECIFIEDhttps://orcid.org/0000-0002-3934-4527UNSPECIFIED
Dietz, GuidoEuropean Transonic Windtunnel GmbH, 51147 Köln, GermanyUNSPECIFIEDUNSPECIFIED
Schulz, MatthiasEuropean Transonic Windtunnel GmbH, 51147 Köln, GermanyUNSPECIFIEDUNSPECIFIED
Date:May 2023
Journal or Publication Title:Journal of Aircraft
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 623-636
EditorsEmailEditor's ORCID iDORCID Put Code
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Keywords:three-dimensional buffet mechanisms, ultra-high-bypass-ratio-type engines, European Transonic Windtunnel, Reynolds number regime
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
Deposited By: Micknaus, Ilka
Deposited On:04 Jul 2023 17:12
Last Modified:10 Jul 2023 11:01

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