The Influence of Nozzle Geometry on Aerosol Deposition Studied Using 3D Computational Fluid Dynamics Simulations

Abstract This paper investigates three different types of nozzle geometries and the first steps for individual shape optimization to maximize the powder impact velocities. The basic types concern (i) a convergent, (ii) a convergent-divergent, and (iii) a convergent-constant geometry. For each nozzle type, four geometrical variables were investigated to reveal their individual and possibly combined potential to improve particle impact velocities.