Multiple Injector Model for Primary Breakup of a Liquid Jet in Crossflow

A model for the atomization of a turbulent liquid jet injected into a subsonic gaseous crossflow is provided. The trajectory of the jet before its breakup is predicted theoretically. The stripping of droplets from the jet is modeled by defining multiple injectors along the predicted jet trajectory. The properties of the stripping droplets are prescribed using empirical correlations specifically derived for jets in crossflow. The secondary breakup of the product droplets and their subsequent motion in the gas flow are predicted using a Lagrangian-Eulerian numerical scheme. Experiments are carried out to investigate the capability of the model in predicting spray penetration and droplet size, and velocity distributions downstream of the nozzle. [PUBLICATION ABSTRACT]