Combustion instability coupling mechanisms between acoustics and LOx/CH4 spray flames
Sliphorst, M. and Gröning, S. and Knapp, B. and Oschwald, M. (2011) Combustion instability coupling mechanisms between acoustics and LOx/CH4 spray flames. In: Proceedings of the 49th AIAA ASM Meeting (AIAA 2011-327). 49th AIAA Aerospace Science Meeting, 4. - 7. Jan. 2011, Orlando, Florida, USA.
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The effects of acoustic perturbations on a LOx/CH4 spray flame have been experimentally investigated. The main objective was to learn more about the interaction between combustion chamber processes and the externally enforced acoustic field. With an in-depth analysis of dynamic pressure signals and optical diagnostics of the flame, several results have been obtained which are presented in this paper. It was possible to spatially resolve where in the combustion chamber the response of the flame to the acoustic wave was highest. All results were consistent and allowed a conclusion with respect to whether the coupling mechanism dominantly responsible for the interaction between acoustic field and combustion is pressure or velocity driven.
|Document Type:||Conference or Workshop Item (Speech, Paper)|
|Title:||Combustion instability coupling mechanisms between acoustics and LOx/CH4 spray flames|
|Journal or Publication Title:||Proceedings of the 49th AIAA ASM Meeting|
|In ISI Web of Science:||No|
|Keywords:||combustion instability, acoustics|
|Event Title:||49th AIAA Aerospace Science Meeting|
|Event Location:||Orlando, Florida, USA|
|Event Type:||international Conference|
|Event Dates:||4. - 7. Jan. 2011|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|HGF - Program Themes:||W RP - Raumtransport|
|DLR - Research area:||Space|
|DLR - Program:||W RP - Raumtransport|
|DLR - Research theme (Project):||W - Antriebsystemtechnik - Schubkammertechnologie und Hochdruckverbrennung (old)|
|Institutes and Institutions:||Institute of Space Propulsion > Raketenantriebe|
|Deposited By:||Michaela Hanke|
|Deposited On:||30 Nov 2011 10:08|
|Last Modified:||23 Jan 2012 11:45|
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