Particle Image Velocimetry

Particle Image Velocimetry (PIV) established itself in recent years as a reliable and efficient diagnosis instrument for the contact-free analysis of transparent fluids. The major advantage over other established measurement techniques like Laser Doppler Anemometry (LDA) or Doppler Global Anemometry (DGV), for example, is the fact that instantaneous velocity fields can only be determined with Particle Image Velocimetry. Thus it is possible to measure and analyze particularly the effects and processes in unsteady, three-dimensional flows. At the Institute of Fluid Mechanics and Aerodynamics a variety of commercial and self-developed PIV systems is available, which can be used to build up all PIV versions in case of a suitable alignment of the components:

  •   Standard Particle Image Velocimetry
  •   Stereoscopic Particle Image Velocimetry
  •   High Speed Particle Image Velocimetry
  •   Microscopic Particle Image Velocimetry
  •   Multi-Plane Particle Image Velocimetry
  •   Tomographic Particle Image Velocimetry
  •   Scanning Particle Image Velocimetry

Despite of decades of development the Particle Image Velocimetry offers still a lot of potential for improvements. At the Institute of Fluid Mechanics and Aerodynamics enhancements are pushed particularly in the following scopes:

  •     Seeding
  •     Optical Systems
  •     Digital Image Processing
  •     Stereo PIV
  •     Mulit-Plane PIV
  •     Micro PIV
  •     High Speed PIV
  •     3D PIV