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Analysis of Mixing Enhancement Using Streamwise Vortices in a Supersonic Combustor by Application of Laser Diagnostics

Sunami, T. und Scheel, F. (2002) Analysis of Mixing Enhancement Using Streamwise Vortices in a Supersonic Combustor by Application of Laser Diagnostics. In: 11th AIAA/AAAF International Conference Space Planes and Hypersonic Systems and Technologies, Orleans, France. AIAA. 11th AIAA/AAAF International Conference Space Planes and Hypersonic Systems and Technologies, Orleans, France, 29 September - 4 October, 2002.

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Kurzfassung

In this paper, we will present first overview of our experimental investigation on the mixing processes by the supersonic streamwise vortices using Mie scattering. Main purposes of this study are to clarify how the fuel/air mixing processes are affected by the initial streamwise vortex arrangements in terms of vortex circulations and co- or counter-rotation and combustion heat release. Experiments are conducted Mach 2.48 direct-connect supersonic combustor. Four kinds of Alternating-Wedge fuel injector struts are examined. Results show that initial arrangement of streamwise vortices significantly affect the mixing processes, such as the rotational motion of the streamwise vortices due to their mutual interactions through their induced velocity field and following streamwise vortex (fuel jet) structuraes, growth rate of mixing region, evolution of turbulent motions within the hydrogen jet (large-scale streamwise vortices). It is also revaeled that structures of fuel jet (streamwise vortices) are strongly affected by combustion heat release to obtain more uniform fuel distribution.

Dokumentart:Konferenzbeitrag (Paper)
Zusätzliche Informationen: LIDO-Berichtsjahr=2003, monograph_id=AIAA 2002-5203,
Titel:Analysis of Mixing Enhancement Using Streamwise Vortices in a Supersonic Combustor by Application of Laser Diagnostics
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Sunami, T.NAL
Scheel, F.NICHT SPEZIFIZIERT
Datum:2002
Erschienen in:11th AIAA/AAAF International Conference Space Planes and Hypersonic Systems and Technologies, Orleans, France
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der Herausgeber
AIAA, NICHT SPEZIFIZIERT
Verlag:AIAA
Status:veröffentlicht
Veranstaltungstitel:11th AIAA/AAAF International Conference Space Planes and Hypersonic Systems and Technologies, Orleans, France, 29 September - 4 October, 2002
Veranstalter :American Institute of Aeronautics and Astronautics (AIAA)
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W RP - Raumtransport
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W RP - Raumtransport
DLR - Teilgebiet (Projekt, Vorhaben):E -- keine Zuordnung
Standort: Lampoldshausen
Institute & Einrichtungen:Institut für Raumfahrtantriebe
Hinterlegt von: Monika Lohmiller
Hinterlegt am:16 Sep 2005
Letzte Änderung:06 Jan 2010 14:02

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