PIV* is a method used to chart speeds in flows... Two ONERA engineer researcher teams- one of experimental aerodynamicists, the other data processing experts specializing in image processing, have together developed the FOLKI*-SPIV software for high-speed processing of sequences of PIVimages (ParticleImageVelocimetry)
Velocity measurements using high-repetition-rate stereoscopic PIV make it possible to observe the large scale dynamics of jet turbulence in a wind tunne, opening the way to progress in the understanding of jet noise generation. For the first time, in the ONERA R4Ch wind-tunnel at Meudon, a series of PIV (ParticleImageVelocimetry) data acquisitions was carried out at a high rate (2500 images per second), in the R4 Wind Tunnel at Meudon