Numerical Investigation of Particle Dynamics in Laminar Flow Over Wavy Surfaces

In this study, we delve into the complex behavior of point particles dispersed in a laminar flow over wavy surfaces at low concentrations, where the interaction between the continuous and dispersed phases is significant. Using advanced numerical simulations , we reveal how suspended particles not only alter the flow structure but also undergo substantial behavioral changes as a result. Our focus is on the spatial distribution and movement of point particles in a homogeneous airflow over a wavy surface.

We conducted an extensive numerical investigation of particle-laden Newtonian fluid flows through rectangular channels featuring one way surface. Employing a customized solver designed to meet specific requirements, we leveraged OpenFOAM's standard solver dictionaries and C++ coding capabilities to handle complex calculus functions. The result indicate that wave characteristics, such as wavelength and amplitude, have a pronounced effect on particle movement. Additionally, we explore how the behavior of the dispersed phase varies with different Stokes and Reynolds numbers.

Our findings offer significant insights into the dynamics of dispersed phases in channel flows with wavy base structures for future studies and practical applications.