The resistance characteristics of a corrugated flame arrester in hydrogen explosions were investigated using a visual explosion-retardant system. By varying the structural parameters of the corrugated flame-retardant system and the concentration of hydrogen

the flame resistance characteristics and the mechanisms affecting hydrogen explosions were summarized. The results indicate that there was a clear correlation between the flame propagation and pressure rise during explosion resistance. When the flame resistance failed

a significant enhancement effect was observed at the backend of the flame-retardant system. Additionally

a noticeable oscillation occurred in the initial stage of flame propagation due to the obstruction caused by the flame-retardant system. The thickness and porosity of the flame-retardant system

along with the hydrogen concentration

influenced the intensities of shock waves and flames entering the narrow channel

as well as the physical and chemical effects during internal propagation

thereby affecting the overall flame resistance.