Shockwave Profile Analysis Through Edge-Enhanced Natural Schlieren

M-21 series, 122mm rocket. A simple contrast edge allows density gradients to be visualized through natural-background schlieren. Rather than a full-field schlieren analysis, aligning a long but small resolution with the edge allows substantially higher frame rates to be used, with composite assembly or single column analysis post-processing providing an appropriate data set.

Imaging

Camera	E9•150S
Frame Rate	1,619,048 fps
Exposure Time	0.18 µs
Lighting	Sunlight