Experimental study of the flow field in and around a one meter diameter methane fire

摘要

Simultaneous temporally and spatially resolved, 2-D velocity fields are obtained using Particle Image Velocimetry(PIV)in a one-meter diameter methane fire. The flow rate of methane is 0.066 kg/m~2-s, Comparable to fuel burning rates in a large JP8 pool fire. Raw PIV images are recorded with 35 mm Cinematography at 200 images/s. They are digitized and post-processed to obtain velocity data for a region～0.8 M high by 1 m wide centered on the centerline of the flame and extending from just above the surface of the Burner to include the fuel core, near-field combusting zones, and surrounding air.