Particle—gas dispersion effects in a round jet

TLDR: The fully developed region for a two-phase jet exhibits similarity for velocity and concentration as mentioned in this paper, where a power law expression approximates the velocity distribution and the square root of this profile coincides with the concentration distribution.

Abstract: The fully developed region for a two-phase jet exhibits similarity for velocity and concentration. A power law expression approximates the velocity distribution and the square root of this profile coincides with the concentration distribution. Measurements show that particle dispersion decreases with increase in particle concentration and the gas mixing rate is lower than the particle mixing rate. The turbulent Schmidt Number remains constant at a value equal to 0.47. La region de l'ecoulement pleinement developpe pour un jet a deux phases presente une similitude pour la vitesse et la concentration. Une loi puissance donne une approximation de la distribution des vitesses et la racine carree de ce profil coincide avec la distribution de la concentration. Les mesures obtenues indiquent que la dispersion des particules decroit lorsque la concentration des particules augmente et que la vitesse de melange du gaz est plus petite que celle des particules. Le nombre de Schmidt de turbulence demeure constant a la valeur de 0.47.