Polydisperse Spray Modeling Using Eulerian Method

Sprays play a significant role in many engineering applications such as liquid fuel injectors, industrial spray coaters, water sprinklers and agricultural sprayers. In most of the numerical study, Eulerian and Lagrangian formulations have been used for the gas and liquid phases, respectively. However, modeling of droplets using Lagrangian approach is computationally expensive for complex configuration. An Eulerian–Eulerian approach, also referred to as multi-fluid method in the literature, is developed in recent time to reduce the computation cost. This chapter presents a brief review of the recent studies on spray modeling using Eulerian multi-fluid method. Initially, one-dimensional transport of polydisperse evaporating water spray in a spatially varying velocity and temperature field is reported. A comprehensive analysis on droplet clustering pattern in an oscillating flow field is presented. Then, transport of polydisperse evaporating liquid spray in crossflow configuration using multi-fluid method is reported.