Probability density of turbulence from multiple field particle image velocimetry
Abstract
The theory is developed for a particle image velocimetry measurement procedure in which particles moving in a twodimensional region of a steady turbulent flow are photographed repeatedly to build up a statistical ensemble of flow field realizations on a single photographic plate. Each interrogation spot on the plate contains a sample of the probability density function for the two components of velocity that lie in the photographic object plane. This sample can be measured by twodimensional spatial correlation analysis. In general, the measured probability is biased toward low velocities, but with proper experimental design this bias can be avoided.
 Publication:

5th Symposium on Turbulent Shear Flows
 Pub Date:
 1985
 Bibcode:
 1985stsf.proc...11A
 Keywords:

 Photographic Measurement;
 Probability Density Functions;
 Turbulence Meters;
 Turbulent Flow;
 Velocity Measurement;
 Steady Flow;
 Two Dimensional Flow;
 Fluid Mechanics and Heat Transfer