甲烷中灼热浑浊顺流中脉冲式甲烷喷流自点火过程的高速成像检测方案(流量计)

The auto-ignition of a pulsed methane jet in the hot exhaust gas of a hydrogen/air flat flame and the following flame kernel development have been studied with high-speed laser and imaging techniques. The downstream location of the auto-ignition and the ignition time were determined with OH* chemiluminescence, as well as the lift-off height of the stably burning jet flame. Further details of the ignition were characterized by using simultaneous planar laserinduced fluorescence of OH. A third camera, looking at the jet from a different viewing angle was used to gain three-dimensional information about the ignition kernel location.