ENDGAME - Laboratory Experiment 2022-11-29 Exp. 002 - Part 1 - High Speed Camera data

Preliminary test with high speed camera and Schlieren shadow photography. Images of the rise of multiple air bubbles in a 2D setup obtained using 2 parallel glass sheets (3 mm thickness) separated by rubber seals and filled with distilled water. The gap between the two parallel sheets is 3 mm. Air was injected manually into the 2D setup through a straw (4 mm diam) at high speed. Frame rate of the high speed camera is 250 fps. The spherical mirror used for the Schlieren setup was 75 mm wide with a 750 mm focal length.采用高速摄影机（high speed camera）与纹影（Schlieren）阴影摄影技术开展预试验。本次试验搭建了由两块厚度为3mm的平行玻璃板构成、以橡胶密封件实现间隙密封并填充蒸馏水的二维试验装置，拍摄得到该装置内多气泡上升过程的图像。两块平行玻璃板之间的间隙为3mm。通过直径4mm的吸管以高速向该二维装置内手动注入空气。该高速摄影机的帧率为250帧每秒（fps）。本次纹影系统所使用的球面镜口径为75mm，焦距为750mm。