elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Enhanced Wake Vortex Decay in Ground Proximity Triggered by Plate Lines

Holzäpfel, Frank and Stephan, Anton and Heel, Tobias and Körner, Stephan (2014) Enhanced Wake Vortex Decay in Ground Proximity Triggered by Plate Lines. 4th EASN Workshop, Flight Physics & Aircraft Design, 27.-29. Oktober 2014, RWTH Aachen.

Full text not available from this repository.

Abstract

The highest risk to encounter wake vortices prevails in ground proximity, where the vortices cannot descend below the glide path but tend to rebound due to the interaction with the ground surface. Weak crosswinds may compensate the self-induced lateral propagation of the upwind vortex, such that it may hover over the runway directly in the flight path of the following aircraft. With the installation of plate lines at distances of a few hundred meters from the runway threshold, vortex decay in ground proximity can be substantially accelerated. A new hybrid simulation method is employed to capture wake vortex evolution in ground proximity from early roll-up to final decay. The numerical simulations reveal the nature of the disturbances triggered by the plate line and of so-called end effects driven by the sudden loss of lift during touchdown. Field measurement data gathered during the campaigns WakeMUC at Munich airport and WakeOP at special airport Oberpfaffenhofen corroborate and complement the findings of the simulations. Experiments and simulations demonstrate that plate lines appreciably accelerate wake vortex decay and interfere favorably with the end effects. This way safety can be further increased during the flight phase with most reported encounters.

Item URL in elib:https://elib.dlr.de/93107/
Document Type:Conference or Workshop Item (Speech)
Title:Enhanced Wake Vortex Decay in Ground Proximity Triggered by Plate Lines
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Holzäpfel, FrankDLR, IPAUNSPECIFIED
Stephan, AntonDLR, IPAUNSPECIFIED
Heel, TobiasDLR, IPAUNSPECIFIED
Körner, StephanDLR, IPAUNSPECIFIED
Date:2014
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-12
Status:Published
Keywords:wake vortex, hybrid RANS/LES, plate line, field experiment, WakeOP, HALO
Event Title:4th EASN Workshop, Flight Physics & Aircraft Design
Event Location:RWTH Aachen
Event Type:international Conference
Event Dates:27.-29. Oktober 2014
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:05 Dec 2014 11:16
Last Modified:05 Dec 2014 11:16

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.