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LES study on the shape effect of ground obstacles on wake vortex dissipation

Wang, C.H. John and Zhao, Dan and Schlüter, Jörg and Holzäpfel, Frank and Stephan, Anton (2017) LES study on the shape effect of ground obstacles on wake vortex dissipation. Aerospace Science and Technology, 63, pp. 245-258. Elsevier. doi: 10.1016/j.ast.2016.12.032. ISSN 1270-9638.

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Official URL: https://doi.org/10.1016/j.ast.2016.12.032


The lingering wake vortex following a landing aircraft has long been a hazard to aviation safety. Previous studies at the German Aerospace Center (DLR) confirmed the effectiveness of applying ground-based obstacles to improve the dissipation of the wake vortex pair by triggering the onset of the vortex bursting by the artificial introduction of shortwave instability. Following the design of the plate line obstacles as proposed by DLR for vortex dissipation, we further investigate the influence of the shape of the ground obstacles on dissipating wake vortex in the present work. The secondary vortex structure, resulting from the interaction between the vortical flow and the obstacle plate, stems from the location of the obstacle and travels outward along the vortex axis, thus spreading instability to the vortex structure along the way. 3D numerical simulations were conducted using Large Eddy Simulation with OpenFOAM solver.

Item URL in elib:https://elib.dlr.de/113794/
Document Type:Article
Title:LES study on the shape effect of ground obstacles on wake vortex dissipation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Wang, C.H. JohnCollege of Eng., Nanyang Tech. Univ., SingaporeUNSPECIFIEDUNSPECIFIED
Zhao, DanCollege of Eng., Nanyang Tech. Univ., SingaporeUNSPECIFIEDUNSPECIFIED
Schlüter, JörgSchool of Eng., Deakin Univ., Geelong, Viktoria, AustraliaUNSPECIFIEDUNSPECIFIED
Holzäpfel, FrankDLR, IPAhttps://orcid.org/0000-0003-3182-1832UNSPECIFIED
Journal or Publication Title:Aerospace Science and Technology
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 245-258
Keywords:experimental vortex measurement, Wasser Schleppkanal, ground obstacles
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Climate, Weather and Environment (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Transport Meteorology
Deposited By: Ziegele, Brigitte
Deposited On:24 Aug 2017 12:11
Last Modified:13 Jun 2023 14:15

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