Numerical Simulation of a Turbulent Liquid Jet Emanating from a Plain-Orifice Atomizer and a Pressure-Swirl Atomizer

Abstract

The performance of three linear eddy viscosity models (LEVM), one algebraic Reynolds stress model (ARSM), and one differential Reynolds stress model (DRSM) in the simulation of the flows inside and outside a plain-orifice atomizer and a pressure-swirl atomizer are evaluated. It is found that for nonswirling cases, the DRSM, ARSM, and Nagano-Hishida's low-Reynolds-number turbulence model give better results. For swirling cases, the DRSM and ARSM turbulence models perform better than the other models. Based on a compromise between numerical accuracy and computational cost, the ARSM turbulence model is a preferable choice.