The VOF method applied to the numerical simulation of a 2D liquid jet under gravity

Numerical simulations of a two-dimensional gravitational liquid sheet injected in another immiscible fluid are performed. The steady state of the liquid sheet has been calculated by solving the two-dimensional Navier-Stokes equations for variable density incompressible flows and the interface between the two fluids has been determined by using the Volume of Fluids method . The analysis takes into account viscous, inertial, gravitational and surface tension forces and different regimes of motion are identified according to the values of Reynolds and Stokes numbers. Velocity, pressure and shape of the sheet are investigated and the results are in well agreement with previous numerical and experimental results.