Hydrodynamically-induced instabilities and emergent patterns In driven colloidal matter

Actuated colloidal particles, driven by oscillating external forces or torques can rectify their motion  and displace in a liquid medium. Due to their small size, these out of equilibrium dynamical states generates flows that induce long range hydrodynamic interactions. These interactions have profound effects in the   transport and assembly of colloidal suspensions.

I will analyze  the role that hydrodynamic interactions play  in the emergence of patterns and different type of morhological structures  in  actuated colloidal particles. I will combine theoretical simple models and computer simulations to gain insight in the role of hydrodynamics  in these out of equilibrium system.   I will analyze the development of  finite clusters on    chiral fluids of colloidal spinners, as well as  the correlated motion of  colloidal suspensions driven by a traveling wave ratchet, where hydrodynamic interactions can  lead to a effective  speed-up.