You need JavaScript to view this

Dispersion of aircraft exhaust in the late wake

Abstract

The dispersion of aircraft emissions is investigated at cruising levels, i.e. in the free, stably stratified atmosphere near the tropopause. The study is based on large-eddy simulations in a domain of size 4.3 x 1.1{sup 2} km{sup 3} where the combined effects of typical atmospheric stratification, shear and turbulence are considered. The effect of a breaking gravity wave on the dispersion of the exhaust is analyzed. The mixing processes during the late wake flow are evaluated, i.e. in the dispersion and diffusion regimes when the organized flow by the wing tip vortices has ceased and the atmospheric motions gradually dominate the events. (R.P.) 7 refs.
Authors:
Duerbeck, T; Gerz, T; Doernbrack, A [1] 
  1. Deutsche Forschungsanstalt fuer Luft- und Raumfahrt e.V. (DLR), Oberpfaffenhofen (Germany). Inst. fuer Physik der Atmosphaere
Publication Date:
Dec 31, 1997
Product Type:
Conference
Report Number:
ONERA-97-Vol.1; CONF-9610234-
Reference Number:
SCA: 540110; 540120; PA: FRC-98:000135; EDB-98:075803; SN: 98001913112
Resource Relation:
Conference: International colloquium: Impact of aircraft emissions upon the atmosphere, Paris (France), 15-18 Oct 1996; Other Information: PBD: 1997; Related Information: Is Part Of Proceedings of impact of aircraft emissions upon the atmosphere. V. 1; PB: [381] p.
Subject:
54 ENVIRONMENTAL SCIENCES; AIRCRAFT; EXHAUST GASES; EARTH ATMOSPHERE; STRATIFICATION; SHEAR; TURBULENCE; DISPERSIONS; FLOW MODELS; PLUMES; GRAVITY WAVES
OSTI ID:
623611
Research Organizations:
Office National d`Etudes et de Recherches Aerospatiales (ONERA), 92 - Chatillon (France)
Country of Origin:
France
Language:
English
Other Identifying Numbers:
Other: ON: DE98731902; TRN: FR9800135
Availability:
OSTI as DE98731902
Submitting Site:
FR
Size:
pp. 265-270
Announcement Date:

Citation Formats

Duerbeck, T, Gerz, T, and Doernbrack, A. Dispersion of aircraft exhaust in the late wake. France: N. p., 1997. Web.
Duerbeck, T, Gerz, T, & Doernbrack, A. Dispersion of aircraft exhaust in the late wake. France.
Duerbeck, T, Gerz, T, and Doernbrack, A. 1997. "Dispersion of aircraft exhaust in the late wake." France.
@misc{etde_623611,
title = {Dispersion of aircraft exhaust in the late wake}
author = {Duerbeck, T, Gerz, T, and Doernbrack, A}
abstractNote = {The dispersion of aircraft emissions is investigated at cruising levels, i.e. in the free, stably stratified atmosphere near the tropopause. The study is based on large-eddy simulations in a domain of size 4.3 x 1.1{sup 2} km{sup 3} where the combined effects of typical atmospheric stratification, shear and turbulence are considered. The effect of a breaking gravity wave on the dispersion of the exhaust is analyzed. The mixing processes during the late wake flow are evaluated, i.e. in the dispersion and diffusion regimes when the organized flow by the wing tip vortices has ceased and the atmospheric motions gradually dominate the events. (R.P.) 7 refs.}
place = {France}
year = {1997}
month = {Dec}
}