ENDGAME - Laboratory Experiment 2023-11-07 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 plexiglass sheets (30 cm x 50 cm x 1 cm) separated by 2 lateral bars (gap between plexiglass sheets 1.2 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. The 2D setup was either empty (i.e. with air at ambient conditions) or filled with a given amount of fluids (water or viscous fluid) or small particles. Images were collected at a frame rate of 50000 fps. The field of view of the images show the jet flow dynamics in the upper part of the 2 plexiglass sheets and in the atmosphere from the side.

本数据集对应结合高速纹影阴影摄影（Schlieren shadow photography）技术的初步二维激波管实验。本研究搭建了一套二维激波管实验装置：采用两块尺寸为30 cm × 50 cm × 1 cm的有机玻璃（plexiglass）板，通过两根侧向支撑杆分隔，两块有机玻璃板之间的间隙为1.2 cm。向该二维装置内注入不同超压（最高可达8巴）的压缩空气，高压储气罐通过膜片脉冲阀与该二维实验装置相连，该阀门可实现加压气体向系统内的快速释放。该二维装置可处于空置状态（即内部为环境条件下的空气），或填充定量流体（水或粘性流体），亦或装填细小颗粒。图像采集帧率为50000 fps，图像视场覆盖两块有机玻璃板上部及侧向大气中的射流流场动力学过程。