灼热浑浊顺流中脉冲式甲烷喷流自点火过程的高速成像测量
The auto-ignition of a pulsed methane jet in the hot exhaust gas of a hydrogen/air flat flame and the following flamekernel development have been studied with high-speed laser and imaging techniques. The downstream location ofthe auto-ignition and the ignition time were determined with OH* chemiluminescence, as well as the lift-off heightof the stably burning jet flame. Further details of the ignition were characterized by using simultaneous planar laserinducedfluorescence of OH. A third camera, looking at the jet from a different viewing angle was used to gainthree-dimensional information about the ignition kernel location.