Effects of N2/CO2 dilution on flame propagation velocities and quenching distances of oxy-methane premixed mixtures using an Annular-Stepwise-Diverging-Tube (ASDT)Hun Young Kim, Jiseop Lee and Nam Il KimMath. Model. Nat. Phenom., 13 6 (2018) 55DOI: https://doi.org/10.1051/mmnp/2018053