Study of Baffle Height and Wind Velocity Effect on the Characteristics of Pool Fires in a Wind Tunnel

Wind-blown pool fire accidents in a ventilated tunnel usually pose and present serious risks to properties personal safety. In this paper, the flame characteristics flow field changes of fires under combined influence baffles crosswinds were investigated using wind experiments numerical simulations. The reveal that length increases first, then decreases with increasing crosswind speeds up 3 m/s becomes almost constant. Finally, as speed continues increase, remains height unchanged. As for tilt angle, above baffle first unchanged when velocity from 2 5 m/s. According simulation results, clockwise rotating eddy will be generated downstream baffle. recirculation zone on surface transfers fresh air flame. vortex can retain heat send back unignited fuel vapor burned rather than being blown away. results may provide beneficial suggestions understanding development behind obstacles tunnels.