铝粉湍流火焰诱导激波现象的实验研究

Experimental Study on the Shock Wave Induced by Turbulent Flame in Aluminum Dust-Air Mixture

粉尘湍流火焰诱导激波问题是工业灾害研究中的重要课题．本文在自行设计的大型卧式燃烧管内，对铝粉火焰诱导激波现象进行了实验研究，测试了湍流火焰阵面前压缩波到激波的转捩过程，并将实验结果与数值模拟结果进行了比较．

Shock wave induced by turbulent dust flame is an important topic of industrial hazard study. An experimental research on the turbulent flame accelelation and the shock induced by turbulent flame in the aluminum dust-air mixture has been made in a large horizontal dust combustion tube. The transition process of compressive wave to shock wave has been detected. The measured results are in good agreement with numerical simulation.