This paper discussed a new injection mode of aluminum dust fuel on PDE and its measurement of velocity using a high-speed visualization and temporal resolution particle image velocimetry system. Based on particle image velocimetry, we can clear the new method is applicable, and can adjust its parameters to implement best, without operating the pulse detonation engine. Through the analysis of dust velocity distribution images, the most appropriate injection pressure to pulse detonation engine were be determined. It can be seen that a particle image velocimetry system can be very important in the application of experimental study of the pulse detonation engine.
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