Based on the reaslization above, the numerical simulation techniques are adopted to studythe premixed flame propagating in duct and activity of fire extinguishing in inert gases in thisarticle.

• 本文采用了现阶段较为流行的计算机模拟技术，对预混可燃气体混合物在管道内的爆炸过程和惰性气体淬熄火焰的效果进行了研究。