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An estimation method for the fuel burn and other performance characteristics of civil transport aircraft in the cruise. Part 1: fundamental quantities and governing relations for a general atmosphere.

Poll, D. I. A. und Schumann, Ulrich (2020) An estimation method for the fuel burn and other performance characteristics of civil transport aircraft in the cruise. Part 1: fundamental quantities and governing relations for a general atmosphere. The Aeronautical Journal. Cambridge University Press. doi: 10.1017/aer.2020.62. ISSN 0001-9240.

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Offizielle URL: https://www.cambridge.org/core/journals/aeronautical-journal/

Kurzfassung

This paper is one of a series addressing the need for simple, yet accurate, methods for the estimation of cruise fuel burn and other important aircraft performance parameters. Here, a previously published, constant Reynolds number model for turbofan powered, civil transport aircraft is extended to include Reynolds number effects. Provided the variation of temperature with pressure is known, the method is applicable to flight in any atmospheric conditions. For a given aircraft, cruising in a given atmosphere, there is a single Mach number and Flight Level pair at which the fuel burn per unit distance travelled through the air has an absolute minimum value. Both these quantities depend upon the Reynolds number, which, in turn, depends upon the aircraft weight and the atmospheric vertical temperature profile. Simple, explicit expressions are developed for all parameters at the optimum condition. These are shown to be in very close agreement with numerical solutions of the governing equations. It is found that typical operational mass and temperature profile variations can change cruise fuel burn rate by several percent. In the International Standard Atmosphere, when the speed and altitude deviate from their optimum values, the fuel burn penalty is reduced slightly relative to the constant Reynolds number case. By way of example, the method is used to estimate the minimum fuel, speed-versus-height trajectory for cruise in a realistic atmosphere.

elib-URL des Eintrags:https://elib.dlr.de/135592/
Dokumentart:Zeitschriftenbeitrag
Zusätzliche Informationen:online version
Titel:An estimation method for the fuel burn and other performance characteristics of civil transport aircraft in the cruise. Part 1: fundamental quantities and governing relations for a general atmosphere.
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Poll, D. I. A.Cranfield University, UKNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Schumann, UlrichDLR, IPAhttps://orcid.org/0000-0001-5255-6869NICHT SPEZIFIZIERT
Datum:2020
Erschienen in:The Aeronautical Journal
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
DOI:10.1017/aer.2020.62
Verlag:Cambridge University Press
ISSN:0001-9240
Status:veröffentlicht
Stichwörter:performance, fuel consumption, thrust, drag, Reynolds number, atmosphere
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Luftverkehrsmanagement und Flugbetrieb
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AO - Air Traffic Management and Operation
DLR - Teilgebiet (Projekt, Vorhaben):L - Klima, Wetter und Umwelt (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre
Hinterlegt von: Schumann, Prof.Dr.habil. Ulrich
Hinterlegt am:22 Jul 2020 16:11
Letzte Änderung:02 Aug 2021 10:29

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