The phenomena of rapid multipoint autoignition were observed in the experiment of diesel fuel spray issuing into the CATA, and a special lifted flame appeared with a triple flame. 柴油液雾燃烧试验观察到了快速的多点自燃现象,形成了独特的起升火焰,有三重火焰的特征。
Stable lifted flame is hard to form when co-flow temperature is less than 1022 K. 协流温度低于1022K时,不能形成稳定的起升火焰;
A lifted turbulent H_2/ N_2 jet flame in a hot and vitiated coflow is investigated numerically to explore the issues of auto-ignition as well as the flame lift-off. 采用数值方法研究了一个高温燃烧产物环境中的抬举湍流H2/N2射流火焰,对火焰的自然和抬举特性进行了研究。
Three different models were used to calculate the theoretical liftoff height of propane and DME lifted flames. Compared to the experimental results, the theoretical results showed that the flame stretch effect has important effect on the flame liftoff height and critical Sc number. 4. 采用三种不同的模型计算了丙烷与DME火焰的理论抬升高度,并与实验结果进行了对比,结果表明,火焰拉伸效应对于火焰抬升高度以及临界Sc数都有着重要的影响。