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Dimension of aircraft exhaust plumes at cruise conditions: effect of wake vortices

Unterstrasser, Simon and Paoli, Roberto and Sölch, Ingo and Kühnlein, Christian and Gerz, Thomas (2014) Dimension of aircraft exhaust plumes at cruise conditions: effect of wake vortices. Atmospheric Chemistry and Physics, 14, pp. 2713-2733. Copernicus Publications. DOI: doi:10.5194/acp-14-2713-2014 ISSN 1680-7316

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Official URL: http://www.atmos-chem-phys.net/14/2713/2014/acp-14-2713-2014.html

Abstract

The dispersion of aircraft emissions during the vortex phase is studied using a 3-D LES model with Lagrangian particle tracking. The simulations start with a fully rolled-up vortex pair of a type B747/A340 airplane and the tracer centred around the vortex cores. The tracer dilution and plume extent is studied for a variety of ambient and aircraft parameters until aircraft-induced effects have ceased. For typical upper tropospheric conditions, the impact of stratification is more dominant compared to turbulence intensity or vertical wind shear. Moreover, the sensitivity to the initial tracer distribution was found to be weak. Along the transverse direction, the tracer concentrations can be well approximated by a Gaussian distribution, along the vertical a superposition of three Gaussian distributions is adequate.

Item URL in elib:https://elib.dlr.de/88515/
Document Type:Article
Title:Dimension of aircraft exhaust plumes at cruise conditions: effect of wake vortices
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Unterstrasser, SimonDLR, IPAUNSPECIFIED
Paoli, RobertoSciences de l'Univers au CERFACS, Toulouse, FUNSPECIFIED
Sölch, IngoDLR, IPAUNSPECIFIED
Kühnlein, ChristianECMWF, Reading, UKUNSPECIFIED
Gerz, ThomasDLR, IPAUNSPECIFIED
Date:14 March 2014
Journal or Publication Title:Atmospheric Chemistry and Physics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:14
DOI :doi:10.5194/acp-14-2713-2014
Page Range:pp. 2713-2733
Publisher:Copernicus Publications
ISSN:1680-7316
Status:Published
Keywords:aircraft exhaust, dilution, wake vortex, contrail, atmospheric chemistry, Large-eddy simulations, EULAG-LCM, EULAG
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: Unterstraßer, Dr. Simon
Deposited On:17 Mar 2014 13:50
Last Modified:02 May 2019 14:04

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