Abstract
Flame tip oscillation of a Bunsen type premixed flame with burner rotation has been experimentally investigated. The velocity of unburnt gas mixture is measured with and without flame by LDV system. The bimodal histogram of fluctuation is measured at just upstream of the flame tip, which means the velocity of unburnt mixture fluctuates there. This suggests that the oscillation of unburnt gas mixture is caused by the flame oscillation.
