Simulation Analysis of Tunnel Diesel Oil Explosion Based on FLACS

2019 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

无线电电子学;计算机科学;材料科学

Liu, Weiwei^1^2 ; Ren, Hongxia^1 ; Cheng, Kai^1

Mechanical Engineering College, Jilin University, Changchun, Jilin

130021, China^1

Mechanical Engineering College, Beihua University, Jilin, Jilin

132021, China^2

关键词: Dangerous area;    Diesel oil;    Explosion models;    Fuel concentration;    Maximum temperature;    Pressure field distributions;    Pressure pulse;    Simulation analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/563/2/022045/pdf
DOI  :  10.1088/1757-899X/563/2/022045

来源: IOP

【 摘 要 】

The tunnel explosion model was established by using Gexcon Flacs to simulate the explosion of 3 m3 diesel oil in a tunnel. The temperature, O2, fuel concentration and pressure field distribution during the explosion in the tunnel were analysed. The simulation results show that the temperature of the initial explosion point varies most dramatically during the explosion, and the maximum temperature can reach 1093°C. The pressure pulse can reach 25Pas. When t is equal to 1.135s, the diesel oil doesn't burn completely. In the section Y=7.4m along the length direction of the tunnel, the area 1.5m above the ground is the most dangerous area.