The goal of this study was to measure the Flame Transfer Function of a perfectly and a partially premixed turbulent flame by means of Laser Interferometric Vibrometry. For the first time, this technique is used to detect integral heat release fluctuations. The results were compared to classical OH*-chemiluminescence measurements. Effects of equivalence ratio waves and vortex rollup were found within those flames and were then investigated by means of time resolved planar CH*/OH*-chemiluminescence and Frequency modulated Doppler global velocimetry. This work is motivated by the difficulties chemiluminescence encounters when faced with partially premixed flames including equivalence ratio waves and flame stretching. LIV, recording the time derivative of the density fluctuations as line-of-sight data, is not affected by these flame properties.
|Publication status||Published - 2016|
|Event||ASME Turbo Expo 2016 - Seoul, Seoul, Korea, Republic of|
Duration: 13 Jun 2016 → 17 Jun 2016
|Conference||ASME Turbo Expo 2016|
|Country||Korea, Republic of|
|Period||13/06/16 → 17/06/16|
Fields of Expertise
- Sustainable Systems
- Mobility & Production
Peterleithner, J., Basso, R., Heitmeir, F., Woisetschläger, J., Schlüßler, R., Czarske, J., & Fischer, A. (2016). Comparison of Flame Transfer Functions acquired by Chemiluminescence and Density Fluctuation Measurements. Paper presented at ASME Turbo Expo 2016, Seoul, Korea, Republic of.