Investigation of two-way coupled euler-lagrange spray simulations with swirl

This work aims at the effect of inlet swirl on the turbulent inflow specification for Euler-Lagrange simulations. Euler-Lagrange simulations of the mid-field region of liquid sprays are performed of both the single-phase flow without injected droplets and two-phase simulations with injection model where droplets are injected to the computational domain. Two later set of simulations consider several different swirl strengths of ranging up to a non-dimensional value of 2.0 at an inlet jet Reynolds number of 50000. From time- and circumferential-averaged velocities, we obtain and investigate the effect of inlet swirl on the self-similar profiles of velocity and Reynolds stress for single-phase simulations and the normalized number flux, mean and standard deviation of droplet velocity distributions for two-phase simulations. The swirl effect on the behavior of spray and the radial distribution of the different sized droplets is quantified.



This work was funded by the Office of Naval Research (ONR) under the Multidisciplinary University Research Initiatives (MURI) Program.