Experimental and numerical characterization of a direct solenoid actuation injector for Diesel engine applications

A numerical methodology, based on a preliminary Eulerian Steady Simulation of the nozzle, has been developed in order to gain correct flow rates and turbulence data at each of the nozzle holes exit. Then the Lagrangian spray simulations have been carried out by means of a new atomization approach able to take into account the cavitation phenomena and the turbulence effects. A tuning campaign has been performed in order to validate the secondary KH-RT breakup model, and a grid sensitivity analysis has been carried out.