a National Institute of Industrial Safety, Ministry of Labor, Umezono 1-4-6, Kiyose-shi, Tokyo 204-0024, Japan
b Warsaw University of Technology, Nowowiejska 25, Warsaw 00-665, Poland
Abstract:
An experimental study of methane–air flame propagation in a duct is reported. A flat duct was chosen to allow optical visualization and flame propagation measurements. The duct was equipped with optical-quality windows to allow Schlieren visualization and particle image velocimetry (PIV) velocity measurements. The flame propagation velocity, flow structure, and velocity distribution in the flame for a different air excess factor are reported.