Free Boundary Problems 2026

Collective effect of a large system of heavy particles immersed in a Newtonian fluid

11 Sept 2026, 10:00

30m

Main Building/Floor 2-Room 3075 - Lecture Hall (HU (Main Building))

Fluid-structure Interactions Fluid-structure Interactions

Speaker

Prof. Arnab Roy (Basque Center for Applied Mathematics)

Description

We consider the motion of a large number of heavy particles in
a Newtonian fluid occupying a bounded spatial domain. When we say ``heavy", we mean a particle with a mass density that approaches infinity at an appropriate rate as its radius vanishes. We show that the collective effect of heavy particles on the fluid motion is similar to the Brinkman perturbation of the Navier-Stokes system identified in the homogenization process.