A Computational Study of Tomographic Reconstruction Accuracy and the Effects of Particle Blocking

Tomographic Particle Image Velocimetry (PIV) is a promising new PIV technique which will be used to study the small scale structures of turbulence in a very large water mixing tank. To this end, an overview of the technique is presented, followed by a discussion of the technique’s fundamental principles and a number of other set-up issues. It is concluded that any residual effect resulting from the blocking of particles in the same line of sight will be small. Furthermore, during set-up, extra consideration should be given to particle selection, camera positioning, and also to the possible effects of multiple scattering.