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Dilution of aircraft exhaust plumes at cruise altitudes

Title data

Schumann, U. ; Schlager, Hans ; Arnold, F. ; Baumann, R. ; Haschberger, P. ; Klemm, Otto:
Dilution of aircraft exhaust plumes at cruise altitudes.
In: Atmospheric Environment. Vol. 32 (1998) Issue 18 . - pp. 3097-3103.
ISSN 1352-2310
DOI: https://doi.org/10.1016/S1352-2310(97)00455-X

Abstract in another language

The dilution of jet engine exhaust in the plume behind cruising aircraft is determined from measured plume properties. The data set includes in-situ measurements of CO2, NO, NOy, SO2, H20, temperature, and contrail diameters behind subsonic and supersonic aircraft in the upper troposphere and lower stratosphere, for plume ages of seconds to hours. The set of data is extended into the range of milliseconds based on computations and measured temperature values. The bulk plume dilution is expressed in terms of the dilution ratio N which is the mass of air with which the exhaust from a unit mass of burned fuel mixes. For 0.006 s < t < 104 s, the bulk dilution ratio measured in more than 70 plume encounters follows approximately N = 7000 (t/t0)0.8, t0 = 1 s.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER7174
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professorship Micrometeorology
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 30 Sep 2015 05:56
Last Modified: 30 Sep 2015 05:56
URI: https://eref.uni-bayreuth.de/id/eprint/19976