Particle Image Velocimetry (PIV)

Particle Image Velocimetry (PIV) Measurement SystemsParticle Image Velocimetry (PIV) Measurement Systems
Animation of vortex pair from a pump exit. The animation is generated directly from the DynamicStudio database.

Particle Image Velocimetry (PIV) is a non-intrusive laser optical measurement technique for research and diagnostics into flow, turbulence, microfluidics, spray atomization and combustion processes.

Standard PIV measures two velocity components in a plane (2D2C) using a single CCD or CMOS camera.

Stereo PIV measures three velocity components in a plane (2D3C) using two cameras.

Volumetric Velocimetry (also known as 3D PIV or Tomographic PIV) measures three velocity components in a volume (3D3C) using two, or more cameras.

Time resolved PIV benefits from the advances in CMOS camera technology to acquire high resolution PIV images at frame rates up to 25600 fps (frames per second) with full camera resolution.

Related techniques for measurements of flow fields are Particle Tracking Velocimetry (PTV), Feature Tracking and Feature PIV.

MicroPIV is used for flow studies in micro-channels in lab-on-a-Chip devices


Non intrusive, planar or volumetric technique Velocity range 0 to supersonic
Two or three velocity components simultaneously Measurement areas from smaller than 1 mm2 up to bigger than 1 m2
Snapshots of flowfields Instantaneous velocity vector maps in a cross-section or volume of the flow
Statistics, spatial correlations and other relevant data are available Results are similar to computational fluid dynamics, i.e. large eddy simulations.

Learn more about PIV

Particle Image Velocimetry (PIV) Measurement SystemsMeasurement Principles
Particle Image Velocimetry (PIV) is a whole-flow-field technique providing instantaneous velocity vector measurements in a cross-section of a flow. Read More

Particle Image Velocimetry (PIV) Measurement SystemsApplication Examples
Wind tunnel velocity experiments for testing aerodynamics of e.g. cars, trains, aircraft, buildings and other objects/structures. Read More


Particle Image Velocimetry (PIV) Measurement SystemsFlow Field Diagnostics
Particle Image Velocimetry solutions
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Particle Image Velocimetry (PIV) Measurement SystemsVolumetric Velocimetry Solutions
Entering the 4th Dimension
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