柱形连通容器内预混气体爆炸过程的火焰传播模拟Numerical simulation for the flame propagation in case of a pre-mixed gas explosion in linked vessels
董冰岩;黄佩玉;
摘要(Abstract):
为研究连通容器内气体爆炸规律,采用Fluent(经典流体动力学软件)对柱形连通容器内预混气体爆炸过程进行模拟,模拟了不同点火位置和火焰传播方向条件下连通容器内火焰传播过程和压力变化,并分析了连通容器内不同时刻的速度场。结果表明:火焰面在传播过程中并非完全对称,当火焰到达传爆容器后,湍流燃烧剧烈,火焰不规则变形显著;端面点火后在传爆容器内产生的压力峰值和压力波动比中心点火时更大;当起爆容器为大容器时,传爆容器内气体预压缩程度更大,压力峰值更高。
关键词(KeyWords): 安全工程;可燃气体爆炸;数值模拟;连通容器;点火位置;火焰传播
基金项目(Foundation):
作者(Authors): 董冰岩;黄佩玉;
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