Shock Waves: Faster Than the Speed of Sound High-speed imaging of shock waves could result in improved performance of supersonic jets

摘要

A high-speed camera is a necessary tool for studying phenomena such as flying projectiles and explosions. In the case of explosions, dramatic pressure increases result in strong pressure waves, commonly referred to as shock waves (Figure 1). These waves move more quickly than sound, and capturing them on camera as they unfold remains a technical challenge.