# CFM

## Seminar

### Active suspensions in domains with static or moving boundaries

Lushi, E (Imperial College London)
Monday 19 August 2013, 11:30-12:00

Satellite

#### Abstract

I will briefly describe a novel fast computational method that enables us to trace the coupled dynamics of thousands on micro-swimmers that interact directly as well as via the collectively generated fluid flows. I will illustrate with results involving such an active'' micro-swimmer suspension inside a drop where the spontaneous organization that emerges depends not only on confinement and steric effects, but also on the presence of hydrodynamics. Lastly, I will discuss the case when the active suspension is inside a domain with moving boundaries, such as a peristaltic pump, and where the transport of passive tracers gets effected by the swimmers' collective motion.