TRANSPORT OF DRY AEROSOLS IN TURBULENT JETS

The present study stems from the current need for experimental data re lated to the transport of polydisperse, dry aerosols in a carrier gas jet. The size and velocity of particles laden in a turbulent jet are m easured using a phase-Doppler anemometer. The tests entailed use of ne arly spherical, polydisperse glass beads to seed an air jet at a high enough Reynolds number of roughly 36 X 10(3). The probability density functions of both particle size and velocity are presented at the mout h of the orifice and at an axial station downstream of the jet exit. T he possible dependence of velocity on particle size is discussed.