Effect of pressure and duct geometry on bluff-body flame stabilization

Abstract

Report presenting blowoff velocities and recirculation-zone lengths of propane-air flames stabilized by cylindrical flameholders measured as a function of pressure, cylinder diameter, fuel-air ratio, and tunnel geometry for a range of Reynolds numbers. Results regarding blowoff velocities, recirculation-zone lengths, critical time, and heat losses from recirculation zone are provided.