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Flame Front Evolution and Liquid Phase Distribution During the Ignition Transient of a LOX/GH2-Combustor

Schmidt, V. and Sender, J. and Oschwald, M. (2000) Flame Front Evolution and Liquid Phase Distribution During the Ignition Transient of a LOX/GH2-Combustor. In: 16th Annual Conference on Liquid Atomization and Spray Systems, X.4.1-X.4.6. ILASS-Europe 2000; 16th Annual Conference on Liquid Atomization and Spray Systems, Darmstadt, 11-13 September 2000.

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Abstract

Phenomena on millisecond time scale during the transient ignition process in a model combustor, like flame propagation, flame/spray interaction, and flame stabilization have not been investigated in detail up to now. Diagnostic techniques developed for characterizing the stationary spray flame are applied to investigate the transient evolution of the LOX-spray and the flame front during the ignition process. Ignition was initiated by focusing a pulsed laser into the combustion chamber. Thus ignition time as well as the position of ignition was well defined. This and the exact control of the delay between ignition and detection time allowed to observe the evolution of the flame front. The distribution of the liquid phase of LOX-droplets have been determined by light-sheet techniques using a double pulsed laser system. Simultaneously the position of the flame front is measured by recording the spontaneous emission of the OH-radical. By varying the delay time between ignition and detection in a series of test runs the transient ignition phenomen have been investigated in the interval from 0 to 5 ms after igntion.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2000,
Title:Flame Front Evolution and Liquid Phase Distribution During the Ignition Transient of a LOX/GH2-Combustor
Authors:
AuthorsInstitution or Email of Authors
Schmidt, V.UNSPECIFIED
Sender, J.UNSPECIFIED
Oschwald, M.UNSPECIFIED
Date:2000
Journal or Publication Title:16th Annual Conference on Liquid Atomization and Spray Systems
Page Range:X.4.1-X.4.6
Editors:
EditorsEmail
Tropea, C.UNSPECIFIED
Heukelbach, K., TU-Darmstadt, Germany, UNSPECIFIED
Status:Published
Event Title:ILASS-Europe 2000; 16th Annual Conference on Liquid Atomization and Spray Systems, Darmstadt, 11-13 September 2000
Organizer:Technische Universität Darmstadt
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):E -- no assignement
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 13:50

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