_________PIV_________

Particle Image Velocimetry (PIV)

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

Features

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.

Cameras

Particle Image Velocimetry (PIV) Measurement Systems

CCD and sCMOS Cameras

CMOS Cameras

For Time Resolved Imaging

Camera Endoscopes

Lenses and Filters

Software

DynamicStudio

The imaging software platform

Lasers

DualPower

For classic PIV

DualPower TR

For time-resolved applications

RayPower

The compact and cost effective solution

Illumination optics

Light Sheet Optics

Volumetric Illumination Optics

Submersible Light Sheet Optics

Light Guiding Arms

Accessories

Stereo PIV Accessories

Traverse Systems

Seeding Generators

Learn more about PIV

Measurement 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

Application Examples
Wind tunnel velocity experiments for testing aerodynamics of e.g. cars, trains, aircraft, buildings and other objects/structures. Read More

Brochures

Flow Field Diagnostics
Particle Image Velocimetry solutions
268
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Particle Image Velocimetry (PIV) Measurement Systems Volumetric Velocimetry Solutions
Entering the 4th Dimension
275
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