Flame spread behavior characterization of discrete fuel array under a forced flow

The forced flow driven flame spread behavior along an array of discrete wooden fuel elements was experimentally investigated, which could be important step to understanding the flow-flame interactions that govern fire spread. Fuel arrays with five different spacings (0.75, 0.875. 1.00, 1.125, and 1.25 cm) were subject speeds ranging from 2.2 4.3 m/s at approximately 0.2 intervals. For spacing-flow speed conditions tested in current study, categorized into three regimes, continuous, discrete, quenching, regimes presented a flammability map. Visual analysis top side view video data used describe changing increasing discretization overall structure as increases. An fluid mechanics heat transfer revealed correlation between Stanton number (St), Damkohler (Da), onset instabilities quenching.