Bullet Sequence : 2012

Photograph by

Harald Kleine

About this image

A sequence of colour schlieren images showing the passage of a 0.22 inch calibre bullet in air. In the top frame the bullet is seen to the left, outside of the visualisation system, and shows no evidence of a shockwave. In the centre and lower frames, the same bullet is seen surrounded by compression waves (red and yellow) and expansion zones (blue and cyan). An area of turbulence left by the passage of the bullet is most clearly seen in the lower frame. The images were captured using a high-speed digital video system, taking 40,000 frames per second with an interval of 200 microseconds between frames. School of Engineering and Information Technology, University of New South Wales / Australian Defence Force Academy, Canberra, ACT 2600, Australia