Attractors for the motion of finite‐size particles in a two‐sided lid‐driven cavity.

Abstract: Particle trajectories in an incompressible cavity flow are investigated experimentally. The flow is driven by two facing walls moving with same speed in opposite directions. When the flow is steady and three‐dimensional, finite‐size and neutrally‐buoyant particles are rapidly attracted to periodic orbits. Three‐dimensional particle tracking is used to reconstruct single particle trajectories. Experimental results are presented and compared with numerical simulations. (© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim) [ABSTRACT FROM AUTHOR]