Simulation of Aerosol Deposition in 90° Square Cross Section Bends Using LES Available to Purchase

The behavior of dilute turbulent particulate flow inside a 90° bend with a square cross section is investigated numerically. The continuous phase is simulated using the large eddy simulation technique. The particulate phase is simulated with a Lagrangian approach for various particle diameters. The curved bend has a squared cross section and the simulations are performed for a flow Reynolds number of 100,000 based on the hydraulic diameter of the bend duct. The details of the flow field predicted by LES are presented and compared with predictions of RSM model and the available experimental data. The results of LES are shown to be in a better agreement with the experimental data compared with the RSM model for certain conditions. Steady and unsteady particles tracking approaches are used and the collection fractions of the particles on the bend walls for various particles diameters are presented and discussed.