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Spray and flame structure of a generic injector at aeroengine conditions

Meier, Ulrich und Heinze, Johannes und Freitag, Stefan und Hassa, Christoph (2012) Spray and flame structure of a generic injector at aeroengine conditions. Journal of Engineering for Gas Turbines and Power, 134 (3), Seiten 1-9. DOI: 10.1115/1.4004262.

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Offizielle URL: http://link.aip.org/link/?GTP/134/031503

Kurzfassung

In support of the development of CFD for aeroengine combustion, quantitative measurements of spray properties and temperature were made. A generic swirling air blast injector was designed and built to produce well defined inlet conditions and for ease of numerical description for the CFD development. The measurements were performed in an optically accessible single sector combustor at pressures of 4 and 10 bar and preheat temperatures of 550 and 650 K, respectively. Jet A-1 was used as fuel. The burner air to fuel ratio was 20 and the pressure loss was set to 3%. Sauter mean diameter (SMD) profiles and liquid mass flux distributions were generated from the phase Doppler anemometry (PDA) measurements of the evaporating spray drop sizes and velocities. With planar measurements of Mie scattering and kerosene-LIF, the distribution of kerosene (liquid and vapor phase) was imaged. Temperatures were measured with OH-LIF. The burner was designed with a straight outlet to exhibit lifted flames. Hence initial distributions of size, velocity and density of the spray were measured before it entered the flame. Almost complete prevaporization was seen at least for the 4 bar flame. Compared with atmospheric investigations, the smaller diameters of the droplets and the small streamline curvature of the configuration led to a more uniform behavior of the spray.

Dokumentart:Zeitschriftenbeitrag
Titel:Spray and flame structure of a generic injector at aeroengine conditions
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Meier, Ulrichulrich.meier@dlr.de
Heinze, Johannesjohannes.heinze@dlr.de
Freitag, Stefanstefan.freitag@dlr.de
Hassa, Christophchristoph.hassa@dlr.de
Datum:1 März 2012
Erschienen in:Journal of Engineering for Gas Turbines and Power
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:134
DOI :10.1115/1.4004262
Seitenbereich:Seiten 1-9
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der Herausgeber
NICHT SPEZIFIZIERTASME
Name der Reihe:Transactions of the ASME
Status:veröffentlicht
Stichwörter:Gas turbine; injector; spray; diagnostics
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Antriebe
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L ER - Antriebsforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Brennkammertechnologien
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Antriebstechnik > Brennkammer
Hinterlegt von: Dr.rer.nat. Ulrich Meier
Hinterlegt am:09 Jan 2012 11:12
Letzte Änderung:07 Feb 2013 20:30

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