Numericalanalysis on influencing of explosion vent parameters to the cylindrical container venting progress

Based on FLUENT-the fluid dynamics software,a simulated experiment about the explosion and explosion venting of 9.5 Ch4-air mixture in a cylindrical container is set to analyze the influence of different locations and numbers of venting ports to the pressure decreasing of the container during the venting progress.The results show that:the "two pressure peaks"phenomenon is common in the venting progress.The further the vent is away from the ignition position,the longer of the arrival time of the twice pressure peak and the last time of the peak and thus the slower of the pressure venting progress.Additionally,at the condition of equal venting square,the increasing of the number of vents can be helpful for the pressure venting progress to a certain extent.