Contactless rebound of elastic bodies in a viscous incompressible fluid

In this paper, we investigate the phenomenon of particle rebound in a viscous incompressible fluid environment. We focus on important case no-slip boundary conditions, where it is now well established that collisions cannot occur finite time under certain assumptions. simplified framework, provide conditions which allow us to prove possible even absence topological contact. Our results lead conjecture qualitative change shape solid necessary obtain physically meaningful fluids. support by comparing numerical simulations performed for reduced model with element solutions obtained corresponding well-established partial differential equation systems describing elastic solids interacting