(8e) Multiphase Mixing in Flows with Streamline Curvature

Flows of single phase and multiphase fluids through curved pipes and complex geometries are encountered in numerous industrial processes and biological systems. It is well known that pipe curvature can induce secondary streamwise vortical flows. These secondary flows have a significant impact on mixing and segregation (unmixing) of multiphase fluids. This phenomenon, which occurs for turbulent and non-turbulent flows, can be studied by using advanced computational fluid dynamic (CFD) methods. In this research, an Eulerian/Lagragian model and a multiphase mixture model are used to study the influence of curvature on particle deposition in pipe flows. Simulations are developed for a range of Reynolds numbers for flow though pipes with 90o- and 180o-bends. The numerical results are compared with ongoing experiments on droplet deposition in curved pipes.