SeminarPast EventFluid Dynamics

Imposed flow in active liquid crystals

Schedule
Wednesday, December 16, 2020
15:00 UTC
Thomas Powers

Prof

Brown University

Host: BioActive Fluids

Event Information

Host

BioActive Fluids

Duration

70 minutes

Abstract

Inspired by ongoing experiments on three dimensional active gels composed of sliding microtubule bundles, we study a few idealized problems in a minimal hydrodynamic model for active liquid crystals. Our aim is to use flow to determine the value of the coefficient of activity in a continuum theory. We consider the case of apolar active particles that form a disordered phase in the absence of flow, and study how activity affects the swimming speed of a prescribed swimmer, as well as the stability of a fluid interface. We also consider flows of active matter in channels or past immersed objects.

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