bildevelocimetry
Particle Image Velocimetry, often abbreviated as PIV, is an optical measurement technique used for obtaining instantaneous velocity field measurements in fluids. It involves seeding the fluid with small tracer particles that are assumed to follow the fluid motion. A laser sheet illuminates a plane within the fluid, and two consecutive images of the illuminated particles are captured by a camera. The time interval between the two images is precisely known.
The captured images are then processed by dividing them into small interrogation windows. By tracking the displacement
PIV has found widespread applications in various fields, including aerodynamics, hydrodynamics, combustion research, and microfluidics. It