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Simulation of Aircraft Wake Vortices During Landing with Decay Enhancing Obstacles

Stephan, Anton and Holzäpfel, Frank and Misaka, Takashi (2014) Simulation of Aircraft Wake Vortices During Landing with Decay Enhancing Obstacles. In: ICAS 2000 Conference (ISSN: 0001-9240), pp. 1-7. ICAS 2014, 7.-12. September 2014, St. Petersburg, Russland. ISSN 0001-9240

Full text not available from this repository.

Abstract

Wake-vortex evolution during landing of a long range aircraft is investigated in a turbulent environment. The simulations cover final approach, touchdown on the tarmac, and the evolution of the wake after touchdown. An ambient turbulent crosswind and headwind field is generated in a pre-simulation. The wake is initialized using a RANS-LES coupling approach. The aircraft in high-lift configuration with deployed flaps and slats is swept through a ground fixed domain. The fuselage turbulence is modeled as white noise. The further development of the vortical wake is investigated by large-eddy simulation until final decay. After touchdown wake vortices are subjected to strong three-dimensional deformations and linkings with the ground. The downwind vortex is strongly advected with the wind and decays quickly. End effects, appear after touchdown and propagate along the wake vortices against the flight direction. They lead to a non-uniform circulation decay of the rolled-up wake vortices. Additionally the effect of a plate line installed in front of the runway is studied with this method. The plates cause disturbances of the vortices propagating to either side and interacting with the end effects. The plate line further accelerates the vortex decay.

Item URL in elib:https://elib.dlr.de/92273/
Document Type:Conference or Workshop Item (Speech)
Title:Simulation of Aircraft Wake Vortices During Landing with Decay Enhancing Obstacles
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Stephan, AntonDLR, IPAUNSPECIFIED
Holzäpfel, FrankDLR, IPAUNSPECIFIED
Misaka, TakashiTohoku University, Sendai, JapanUNSPECIFIED
Date:2014
Journal or Publication Title:ICAS 2000 Conference (ISSN: 0001-9240)
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Page Range:pp. 1-7
Series Name:29th ICAS Congress
ISSN:0001-9240
Status:Published
Keywords:wake vortex, hybrid RANS/LES, final approach, end effects, plate line
Event Title:ICAS 2014
Event Location:St. Petersburg, Russland
Event Type:international Conference
Event Dates:7.-12. September 2014
Organizer:ICAS
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
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Transport Meteorology
Deposited By: Ziegele, Brigitte
Deposited On:25 Nov 2014 11:47
Last Modified:09 Feb 2017 19:20

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