Non-evaporating sprays are simulated using a RANS-based Eulerian model called Ω-Y model,and compared with experimental measurements.The Ω-Y model is implemented in the general-purpose Computational Fluid Dynamics(CFD)solver ANSYS Fluent 16.0 via User Defined Functions(UDFs).The model is based on the assumption that the atomization process can be described by considering a single effective phase of liquid-gas mixture to represent the turbulent mixing of a liquid jet with ambient gas.The current formulation of Ω-Y is inspired by the Σ-Y model of Vallet et al.(2001)[1],but closely resembles the Ω-Y model suggested by Burluka et al.(2007)[10] and Lebas et al.(2009)[4].The model takes into account the effects of collision and secondary break-up on the interfacial area density normalized by mixture density,Ω.Three different injectors are studied in this work,and various spray characteristics are compared.The first injector is an air-assisted atomizer.The Sauter mean diameter is compared with experimental measurements of Lasheras et al.(1998)[14].The simulation results are comparing very well with experimental measurements.The second injector considered in this work is a non-vaporizing diesel type spray.Experimental measurements published by Schneider(2003)[16] are used as the benchmark for this validation.The simulation results are in good resonance with the experimental measurements,especially liquid penetration and cone angle.Lastly,the third injector studied here is a liquid jet in crossflow type nozzle.Spray penetration at different values of momentum flux ratio(q)is compared with data in Lubarsky et.al.(2012)[12].Here,too,simulation results match well with experimental measurements.