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翼槽内的火焰传播过程首先是燃气充填过程 ,其次是火焰传播过程。采用高速摄影技术测定了点火瞬态模拟实验发动机后翼槽区内的燃气充填现象 ,研究了不同设计参数对燃气充填过程的影响 ,发现燃气在翼槽内充填时间的长短与升压梯度和翼槽的宽度有关 ,流动形式与初始燃气速度和喷管潜入深度有关。
Flame propagation in the wing groove is the first gas filling process, followed by the flame propagation process. The high-speed photogrammetry was used to measure the gas filling phenomenon in the rear wing groove area of ignition transient simulation engine. The influence of different design parameters on the filling process of gas was studied. It was found that the filling time of the gas in the wing groove and the pressure gradient and wing The width of the groove is related to the initial gas velocity and nozzle penetration depth.