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The contrail mitigation potential of aircraft formation flight scenarios

Unterstraßer, Simon (2020) The contrail mitigation potential of aircraft formation flight scenarios. 3rd ECATS Conference, 2020-04-21 - 2020-04-23, Gothenburg (virtual meeting).

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Extended formation flight (with separations of 10 to 40 wing spans) is a viable option to increase the performance of the commercial aviation sector. Fuel savings of around 10% can be expected during such formations (on average over all participating aircraft), which must substantially outweigh re-routing induced fuel penalty. Net fuel savings directly translate into lower CO2 emissions. Moreover, saturation effects can be expected when contrails of two or more aircraft are produced in close proximity, compete for the available atmospheric water vapour and mutually nhibit their growth. High-resolution simulations of contrails with a well-established model are presented and quantify those saturation effects by comparing long-living contrails behind a two aircraft formation with those evolving behind a single aircraft. The simulations suggest that radiatively-important contrail properties are reduced by 20%-60%. The simulations were performed within the FORMIC project, which also quantified the saturation effects on a regional scale due to non-linear chemistry and the change in the overall global climate impact by the introduction of formation flight (see extended abstract by Dahlmann) and according changes in the flight route cadastre (see also extended abstract by Marks et al).

Item URL in elib:https://elib.dlr.de/134940/
Document Type:Conference or Workshop Item (Speech)
Title:The contrail mitigation potential of aircraft formation flight scenarios
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Unterstraßer, SimonDLR, IPAhttps://orcid.org/0000-0003-3772-3678UNSPECIFIED
Date:October 2020
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:formation flight, contrail, contrail-cirrus, Large-eddy-simulation, Lagrangian ice microphysics, climate impact of aviation, wake vortex surfing
Event Title:3rd ECATS Conference
Event Location:Gothenburg (virtual meeting)
Event Type:international Conference
Event Start Date:21 April 2020
Event End Date:23 April 2020
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: Unterstraßer, Dr. Simon
Deposited On:20 Nov 2020 12:36
Last Modified:24 Apr 2024 20:37

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