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Flame extinction dynamics are investigated for highly turbulent premixed bluff-body stabilized flames within a blow-down combustion facility. Blowout is induced through the rapid reduction of fuel flow into the reactant mixture. A novel turbulence generator is designed to modulate inflow turbulence levels. The turbulence generator implements both jet impingement and grid-based methods to vary turbulence across a wide range of intensities, including the thin reaction regime and pushing into the broken reaction regime. The effects of the induced turbulence on the extinction event is captured through simultaneous high-speed time-resolved particle imaging velocimetry (PIV) and C * 2-CH * species measurement techniques. Flame structure, flow field, and strain rate analyses are employed to detail the driving mechanisms of blowout under various turbulent inflow conditions. It is demonstrated that with increased turbulence intensities, the strain rate along the flame boundary is attenuated, resulting in longer of extinction timescales and improved flame stability.

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