设置障碍物密闭容器内气体爆炸数值模拟  

Numerical simulation of flammable gas explosions in closed vessel built-in obstacle

作　　者：梁春利[1] 毕明树[1] 

机构地区：[1]大连理工大学化工学院化机系,辽宁大连116012

出　　处：《石油化工设备》2005年第6期23-26,共4页Petro-Chemical Equipment

基　　金：国家自然科学基金(50076006);辽宁省博士启动基金(20021064)

摘　　要：运用均相反应流时均方程组、湍流模型k-ε、EBU-Arrhenius燃烧模型和SIMPLEC算法,对密闭容器二维空间内丙烷-空气的爆燃过程进行数值求解。计算结果反映了障碍物对火焰阵面、速度场、流场、爆炸压力以及爆炸强度的影响,得到了爆炸压力和爆炸强度与可燃气体摩尔分数之间的关系。Propane-air deflagrations in closed vessels were simulated based on the time-averaged equations of homogenous reaction flow, k-ε turbulent model, EBU-Arrhenius combustion model and SIMPLEC arithmetic. The resuits reveal the effects of obstacles on flame front, velocity field, stream field, explosion pressure and rate of explosion pressure rise. And the relation between the explosion pressure and rate of explosion pressure rise and flammable gas mole fraction was indicated.

关 键 词：容器 可燃气体 爆燃 数值模拟 

分 类 号：TH49[机械工程—机械制造及自动化]