会议专题

Numerical Simulation of Fuel-air Mixture Explosion on Condition of Inert Gas

The study of suppressing explosions and fire prevention in restricted space was of great significance in petrochemical industry. Inert gas was a kind of efficient, environmental and economically beneficial media in safety protection. Explosive characteristics of fuel vapor-air mixture on condition of inert gas was studied by numerical simulation. The turbulent model of explosion based multi control mechanisms for the fuel-air mixture explosion was founded. The RNG K-ε model based on the gross energy equation was adopted. According to the high rate of reaction, the turbulence phenomena, the couple of the flame and the pressure wave, a two-step combustion model was founded. The governing equations of flow and the reaction equations were solved simultaneously (i.e., coupled together) by the finite volume method (FVM). The comparison of the predicted explosion with the experimental data shows good agreement. The work lays a foundation on process implementing, system design and confirming key parameter of the technology using inert gas for inhibiting explosions.

fuel vapor-air mixture inert gas explosion suppression turbulent flame model numerical simulation

DU Yang CHEN Siwei QIAN Haibing OU Yihong

Department of Military Supply Oil, PLA Logistic Engineering Institution, Chongqing 400016, China

国际会议

2007国际推进剂、炸药、烟火技术秋季研讨会(The 2007 International Autumn Seminar on Propellants,Explosives and Pyrotechnics)

西安

英文

799-802

2007-10-23(万方平台首次上网日期,不代表论文的发表时间)