Particle Image Velocimetry (PIV)

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Particle Image Velocimetry (PIV)

Thứ tư - 06/05/2015 03:53

p2p1Particle 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.

                                                                     

                                                                  Animation of vortex pair from a pump exit. The animation is                                                                                 generated directly from the DynamicStudio database.

 

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.

 

 

For more information: CLICK HERE  

 

Source: www.dantecdynamics.com

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