Research Article

Pulsed Current-Voltage-Induced Perturbations of a Premixed Propane/Air Flame

Figure 5

Sequence of CH (A-X) chemiluminescence images collected with a gated ICCD camera. This sequence shows that the onset of flame structure modification originates from a specific region at or near the cathode and not in the reaction zone of the entire flame volume. Each set shows a single distortion caused by +2.7 kV applied voltage across a 3 mm gap, but differs on the location of the anode. The delay shown is from the end of the 4 ms applied voltage pulse. The white box in the upper left corner of each “No Volt” image is 5 mm by 5 mm.
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