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The interaction of heat release by chemical reaction and the flow dominates flame transition in swirling flows caused by combustion induced vortex breakdown (CIVB). The simultaneous application of 1 kHz high-speed particle imaging velocimetry (PIV) for the analysis of the flow field and OH planar laser-induced fluorescence for the detection of the flame front is particularly useful for the improvement...
Combustion induced vortex breakdown (CIVB) generating flame flashback in swirl burners was investigated experimentally. Since previous work identified the interaction of turbulence and chemistry as the root cause for CIVB, the particle imaging velocimetry and the laser induced fluorescence were chosen for the experimental investigation. Due to the high dynamics during flame flashback the transient...