Experimental study on the process of fuel explosive dispersion

Local records of static explosion were taken by the high-speed video for the 3 kinds of FAE devices. On the analysis of experimental data, the process of fuel explosive dispersion was divided into three regimes: Ejection stage, transition stage and expansion stage, based on the radical expanded velocity caused by explosion acting force and aerodynamic force. For FAE devices with similar structure, according to the experiment data obtained from high-speed video, we got that end-time of different stages and cloud diameters before detonation were proportional to the cube root of fuel quantity, which illuminated that small device can simulate big FAE device. The ratios of cloud diameter to device diameter were 5.5, 30 and 45 at the end moment of different stages, respectively.