2C-PIV is an optical technique which measures the velocity field in a plane. The flow field is seeded with tracer particles. A pulse laser with combination of cylindrical and spherical lens illuminates a plane with a laser sheet. The pulse separation is about nano-second which is adjusted depending on the magnitude of velocity measured. The laser is synchronized with a camera for acquisition of the image at same time instant. The cross correlation between two consecutive images provides the displacement of particles and the velocity. The 2C-PIV has been updated to stereo-PIV (3C-PIV) from support by Naval Research Board for measurement of all three components of velocity.

Technical Specifications:

Laser: Nd:YAG , New Wave
Laser Power: 15 mJ/pulse
Camera: PCO Sensicam 1280 X 1024 pixel
Synchroniser: Oxford Lasers
PIV Processing: Vid PIV


Fluid Mechanics Laboratory, RN: 301, Department of Mechanical Engg.
IIT Kanpur


Prof. P. K. Panigrahi

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Figure 1