In order to investigate the atomization process of a liquid jet injected into a crossflow

the Euler-Euler method in Fluent was used by numerical simulation. The VOF (volume of fluid) model coupled with level-set method was applied to simulate two-phase flow

and the numerical results showed the atomization process of liquid jet in crossflow and the flow field. The effects of flow fields on atomization process of a jet liquid column were studied. Breakup point and liquid jet penetration depth were gained and also compared with the experimental data. The numerical results show that:(1) The coupled level-set and VOF model can be used to simulate the atomization processes of liquid jet injected into crossflow.(2) Because of the counter-rotating vortex

the liquid film and the droplets are transported along the development direction (y)

playing a promoting role for secondary atomization. (3) The jet liquid column is always broken at about 8 times the diameter of the injector

and the location of the broken point is determined by the geometrical characteristics of the injector.