A mathematical model governing the short-range transport of microplastic particles in a lid-driven cavity with an obstacle

In this paper, we developed a mathematical model for the sedimentation process of small particles in lid-driven cavity flow with an obstacle to transport microplastic rivers. A stationary incompressible Navier-Stokes simulation at moderate Reynolds-numbers provides background field. Spherical are injected into field and their equation motion is solved determine number that sediment on surface obstacle. To capture effect typical biological organisms biofilms bottom river beds, can exert attraction force onto particles. Various simulations parameter studies carried out influence geometry, particle densities, process.