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Mitigating Wake Turbulence Risk During Final Approach via Plate Lines

Holzäpfel, Frank and Stephan, Anton and Rotshteyn, Grigory and Körner, Stephan and Wildmann, Norman and Oswald, Lothar and Gerz, Thomas and Borek, Günther and Floh, Alexander and Kern, Christian and Kerschbaum, Markus and Nossal, Roman and Schwarzenbacher, Johannes and Strobel, Martin and Strauss, Lukas and Weiß, Clemens and Kauczok, Sebastian and Schiefer, Christian and Czekala, Harald and Maschwitz, Gerrit and Smalikho, Igor (2021) Mitigating Wake Turbulence Risk During Final Approach via Plate Lines. AIAA Journal, 59 (11), pp. 4626-4641. American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.J060025. ISSN 0001-1452.

[img] PDF - Postprint version (accepted manuscript)

Official URL: http://dx.doi.org/10.2514/1.J060025


To mitigate the risk of wake vortex encounters during final approach, so-called plate lines have been developed. Wake vortices generated by landing aircraft induce secondary vortices at the plates’ surfaces that approach the primary vortices and trigger premature wake vortex decay. Each plate line consists of several upright plates being installed underneath the approach slope. While the plate line extends perpendicular to the flight direction, its individual plates are oriented in parallel to the runway centerline. To obtain the approval of the authorities for the installation of the plate lines at runway 16 of Vienna International Airport, the plate design had to comply with airport requirements like obstacle clearance, stability, and frangibility. During a six-month campaign, wake vortex behavior of about 9500 landings with and without plates was measured simultaneously by three lidars complemented by a comprehensive suite of meteorological instrumentation. The analysis of over 1000 measured wake vortex evolutions indicates that the plate lines reduce the lifetimes of the vortices in a safety corridor along the final approach by 22–37% depending on the aircraft type. This corresponds to a reduction of vortex circulation by about 50% for the most relevant International Civil Aviation Organization separation (Medium behind Heavy).

Item URL in elib:https://elib.dlr.de/145659/
Document Type:Article
Title:Mitigating Wake Turbulence Risk During Final Approach via Plate Lines
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Holzäpfel, FrankDLR, IPAhttps://orcid.org/0000-0003-3182-1832
Wildmann, NormanDLR, IPAhttps://orcid.org/0000-0001-9475-4206
Borek, GüntherAustro Control GmbH, Wien, ÖsterreichUNSPECIFIED
Floh, AlexanderAustro Control GmbH, Wien, ÖsterreichUNSPECIFIED
Kern, ChristianAustro Control GmbH, Wien, ÖsterreichUNSPECIFIED
Kerschbaum, MarkusAustro Control GmbH, Wien, ÖsterreichUNSPECIFIED
Nossal, RomanAustro Control GmbH, Wien, ÖsterreichUNSPECIFIED
Schwarzenbacher, JohannesAustro Control GmbH, Wien, ÖsterreichUNSPECIFIED
Strobel, MartinAustro Control GmbH, Wien, ÖsterreichUNSPECIFIED
Strauss, LukasMeteoServe Wetterdienst GmbH, Austro Control GmbH, Wien, ÖsterreichUNSPECIFIED
Weiß, ClemensMeteoServe Wetterdienst GmbH, Austro Control GmbH, Wien, ÖsterreichUNSPECIFIED
Kauczok, SebastianLEONARDO Germany GmbHUNSPECIFIED
Schiefer, ChristianLEONARDO Germany GmbHUNSPECIFIED
Czekala, HaraldRPG Radiometer Physics GmbHUNSPECIFIED
Maschwitz, GerritRPG Radiometer Physics GmbHUNSPECIFIED
Smalikho, IgorInst. of Atmospheric Optics, Tomsk, RusslandUNSPECIFIED
Date:November 2021
Journal or Publication Title:AIAA Journal
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.2514/1.J060025
Page Range:pp. 4626-4641
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Keywords:wake vortex, plate line, final approach, vortex mitigation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Air Transportation and Impact
DLR - Research area:Aeronautics
DLR - Program:L AI - Air Transportation and Impact
DLR - Research theme (Project):L - Climate, Weather and Environment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Transport Meteorology
Deposited By: Holzäpfel, Dr. habil. Frank
Deposited On:16 Nov 2021 08:17
Last Modified:28 Apr 2022 14:06

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