| Abstract: | The propagation and dilution behaviour of cryogenic clouds in a heavy‐gas channel is studied by Particle Image Velocimetry (PIV) measurements. Ice particles are used as tracer particles for the flow. These particles are generated automatically during the evaporation of the liquid nitrogen in a release chamber used for generation of the cloud. The density of the seeding is controlled by changing the evaporation conditions during the startup phase. The measurements conducted so far result in detailed velocity vector maps and show clearly a vortex forming in the vicinity of the first backward facing step |
