Hydrogen cloud explosion evaluation under inert gas atmosphere

This paper is aimed at evaluating the hydrogen cloud explosion under inert gas atmosphere experimentally and numerically. The results demonstrate that only under Ar, N2 and CO2 atmosphere, the lean and stoichiometric hydrogen flame tends to be unstable. The Markstein length of Ar, N2 and CO2 is less than zero and the decreasing order is Ar, N2 and CO2. Except for CO2, the average flame propagation velocity, maximum explosion pressure, maximum...