Numerical investigation of a steady nonevaporating hollow-cone spray interacting with an annular air jet

Abstract

Numerical stimulation of a steady nonevaporating hollow-cone spray interacting with a concentric annular air jet has been performed using the discrete stochastic particle method in MVA. The spray characteristics such as the Sauter mean diameter (SMD) mean droplet velocity, liquid volume flux; air/liquid mass ratio, and droplet number density have been obtained and compared with measurements involving different airflow rates in large and smalt annuli. Overall, satisfactory agreement is observed between calculation and experiment except for the deviation in the downstream SMD arising from uncertainty in the size distribution function at injection, and inaccuracy in the averaged spray parameters due to the small volumes of axisymmetric 2-D sector meshes close to the axis.