无约束气云爆燃压力场的计算  

A Calculations of Deflagration Pressure Field of Unrestricted Flammable Gas Cloud

作　　者：毕明树[1] 王淑兰[1] 丁信伟[1] 

机构地区：[1]大连理工大学化工学院,辽宁大连116012

出　　处：《爆炸与冲击》2002年第2期148-151,共4页Explosion and Shock Waves

基　　金：国家自然科学基金项目 (5 0 0 76 0 0 6 )

摘　　要：利用球形流体力学方程和燃烧反应模型导出了无约束气云弱点火爆燃过程的压力分布场 ,编制了求解压力场的计算程序 ,可计算不同尺寸气云爆炸时各点的爆炸压力值。进行了可燃气云爆燃实验 ,对计算结果进行了考核。与实验结果相比 ,计算结果的偏差小于 2 0 %。A numerical code is proposed to calculate the deflagration pressure fields of flammable gas cloud under weak ignition, which is deduced from combustion reaction model and gas dynamics equations in spherical coordinate. The experiments of gas cloud explosion were carried out to examine the validity of the calculations. The difference of results between experiments and calculations is less than 20%.

关 键 词：无约束气云 可燃气云 爆燃 压力场 燃烧反应模型 弱点火 气体动力学方程 

分 类 号：O381[理学—流体力学]