ENDGAME - Laboratory Experiment 2024-03-18 Exp. 004 - High Speed Camera data

Preliminary 2D Shock-tube experiments in combination with high speed Schlieren shadow photography. We developed a 2D shock-tube setup using 2 glass sheets (1 cm width) separated by 2 lateral bars (gap between glass sheets 1.3 cm). We injected compressed air into the 2D setup at different overpressures (up to 8 bar). The high-pressure reservoir is connected with the 2D apparatus through a diaphragm pulse valve which allows a fast release of pressurized gas into the system. Images were collected at a frame rate of 30000 fps. The field of view of the images show the jet flow dynamics in the upper part of the 2 glass sheets and in the atmosphere.初步二维激波管（Shock-tube）实验结合高速纹影阴影摄影（Schlieren shadow photography）技术。本研究搭建了一套二维激波管实验装置：采用两块宽度为1厘米的玻璃板，通过两根侧向支撑杆分隔，玻璃板间距为1.3厘米。向该二维装置内注入不同过压条件的压缩空气，最高过压可达8巴（bar）。高压储气罐通过膜片脉冲阀与该二维装置相连，该阀门可实现加压气体向系统内的快速释放。图像采集帧率为30000帧每秒（fps），图像视场覆盖两块玻璃板上部区域及大气环境中的射流流场动态演化过程。