In this work, an atmospheric model combustion chamber was characterized employing Laser Vibrometry, chemiluminescence and Particle Image Velocimetry. The test object was a variable geometry burner enclosed with a liner, with the flame optically accessible through four fused silica windows. In this burner with adjustable flame conditions the cavity of the atmospheric model combustion chamber was excited at a frequency around 200Hz. Resonant and non-resonant flame conditions were investigated and compared by laser vibrometer interferometry, schlieren visualization and OH*/CH* chemiluminescence. Additionally, the velocity field was recorded with Particle Image Velocimetry, while the aerodynamics of the burner plenum was analyzed with Computational Fluid Dynamics.
Interferometric Investigation of the Thermoacoustics in a Swirl Stabilized Methane Flame
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Peterleithner, J, Marn, A, & Woisetschläger, J. "Interferometric Investigation of the Thermoacoustics in a Swirl Stabilized Methane Flame." Proceedings of the ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. Volume 4A: Combustion, Fuels and Emissions. Montreal, Quebec, Canada. June 15–19, 2015. V04AT04A058. ASME. https://doi.org/10.1115/GT2015-42743
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