ENDGAME - Laboratory Experiment 2024-03-19 Exp. 010 - 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 within the 2 glass sheets (vent is outside the field of view).本研究开展了结合高速纹影阴影摄影（Schlieren shadow photography）的初步二维激波管（2D Shock-tube）实验。 我们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。向该装置内注入不同超压（overpressure，最高可达8 bar）的压缩空气。高压储气罐通过膜片脉冲阀（diaphragm pulse valve）与该二维装置相连，可实现高压气体向系统内的快速释放。图像采集帧率为30000 fps。图像视场范围覆盖两块玻璃板内部的射流流场动态特性，排气口位于视场之外。