基于FLACS的隧道汽油爆炸数值模拟
|
摘要
应用Gexcon Flacs软件建立隧道爆炸模型,对3 m3汽油在某隧道内爆炸进行数值模拟,分析爆炸过程中温度、O2、燃料浓度以及压力场的分布情况.结果显示:t=0.188 s时,沿隧道长度方向y=7.4 m截面内隧道两侧为最危险区域,起始爆炸点及其周围一定区域最高温度可达1 093℃; t=0.809 s时,地面到其上方1.5 m区域为危险区域.
The temperature,O2,fuel concentration and pressure field distribution were analyzed through the simulation of 3 m3 gasoline explosion in a tunnel,and the tunnel explosion model was established by Gexcon Flacs.The results showed that when t = 0.188 s,the two sides of the tunnel in the length direction of the tunnel y = 7.4 m was the most dangerous area.The maximum temperature around the initial explosion can reach 1 093 ℃.When t = 0.809 s,the area between the ground and 1.5 m above was a dangerous area.
The temperature,O2,fuel concentration and pressure field distribution were analyzed through the simulation of 3 m3 gasoline explosion in a tunnel,and the tunnel explosion model was established by Gexcon Flacs.The results showed that when t = 0.188 s,the two sides of the tunnel in the length direction of the tunnel y = 7.4 m was the most dangerous area.The maximum temperature around the initial explosion can reach 1 093 ℃.When t = 0.809 s,the area between the ground and 1.5 m above was a dangerous area.
引文
[1]陈长坤,雷鹏,史聪灵,等.公路隧道内氢气和丙烷爆炸数值模拟对比分析[J].中国安全生产科学技术,2017,13(1):151-155.
[2]陈长坤,张宇伦,赵小龙,等.隧道内槽罐车对甲醇蒸气爆炸压力场影响的数值模拟分析[J].中国安全生产科学技术,2018,14(4):126-132.
[3]罗振敏,张群,王华,等.基于FLACS的受限空间瓦斯爆炸数值模拟[J].煤炭学报,2013,38(8):1381-1387.
[4]高轩能,刘颖,王书鹏.基于LS-DYNA的大空间柱壳结构爆炸波压力场分析[J].振动与冲击,2011,30(9):70-75.
[5]王卿权.LNG动力船舶燃料罐火灾、爆炸事故后果数值研究[D].大连:大连海事大学,2014.
[6]肖望,刘丹珠,吴新霞,等.复杂隧道中爆炸冲击波传播特性的数值模拟[J].工程爆破,2012,18(1):16-19.
[7]田志敏,邬玉斌,罗奇峰.隧道内爆炸冲击波传播特性及爆炸荷载分布规律研究[J].振动与冲击,2011,30(1):21-26.
[8]宁鹏飞,唐德高.自然通风隧道内爆炸冲击波传播特性研究[J].振动与冲击,2012,31(24):172-176.
[9]李志鹏,韩龙强,崔柔杰,等.瓦斯爆炸隧道内冲击波特征及衬砌损伤机制数值研究[J].隧道建设(中英文),2018,38(12):1948-1956.
[10]李志鹏,吴顺川.剧烈瓦斯爆炸隧道洞口致损机理[J].工程科学学报,2018,40(12):1476-1487.
[11] V R Feldgun,Y S Karinski,D Z Yankelevsky.The effect of an explosion in a tunnel on a neighboring buried structure[J].Tunnelling and Underground Space Technology,2014,44:42-55.
[2]陈长坤,张宇伦,赵小龙,等.隧道内槽罐车对甲醇蒸气爆炸压力场影响的数值模拟分析[J].中国安全生产科学技术,2018,14(4):126-132.
[3]罗振敏,张群,王华,等.基于FLACS的受限空间瓦斯爆炸数值模拟[J].煤炭学报,2013,38(8):1381-1387.
[4]高轩能,刘颖,王书鹏.基于LS-DYNA的大空间柱壳结构爆炸波压力场分析[J].振动与冲击,2011,30(9):70-75.
[5]王卿权.LNG动力船舶燃料罐火灾、爆炸事故后果数值研究[D].大连:大连海事大学,2014.
[6]肖望,刘丹珠,吴新霞,等.复杂隧道中爆炸冲击波传播特性的数值模拟[J].工程爆破,2012,18(1):16-19.
[7]田志敏,邬玉斌,罗奇峰.隧道内爆炸冲击波传播特性及爆炸荷载分布规律研究[J].振动与冲击,2011,30(1):21-26.
[8]宁鹏飞,唐德高.自然通风隧道内爆炸冲击波传播特性研究[J].振动与冲击,2012,31(24):172-176.
[9]李志鹏,韩龙强,崔柔杰,等.瓦斯爆炸隧道内冲击波特征及衬砌损伤机制数值研究[J].隧道建设(中英文),2018,38(12):1948-1956.
[10]李志鹏,吴顺川.剧烈瓦斯爆炸隧道洞口致损机理[J].工程科学学报,2018,40(12):1476-1487.
[11] V R Feldgun,Y S Karinski,D Z Yankelevsky.The effect of an explosion in a tunnel on a neighboring buried structure[J].Tunnelling and Underground Space Technology,2014,44:42-55.