Researchers at the Laboratory for Hydraulic Machines of the University of Ljubljana’s Faculty of Mechanical Engineering in Slovenia have developed a new imaging system to study cavitation, the formation and rapid collapse of vapour bubbles in liquids.
Thirty precisely synchronised cameras are arranged in a circle around the tip of an ultrasonic device in water, giving a full 360-degree view. The system can act as a virtual rotating high-speed camera, equivalent to more than 60,000 frames per second.
The study, published in Ultrasonics Sonochemistry, shows that cavitation structures can be reconstructed in 3D. The work could help improve ultrasonic cleaning, wastewater treatment and chemical processing.
