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BP: Fachverband Biologische Physik

BP 30: Microswimmers I (Joint Session with DY)

BP 30.11: Vortrag

Dienstag, 8. März 2016, 12:30–12:45, H47

Cross-stream transport of asymmetric particles driven by oscillating shear — •Matthias Laumann¹, Paul Bauknecht², Stephan Gekle², Diego Kienle¹, and Walter Zimmerman¹ — ¹Theoretische Physik I, Universität Bayreuth, 95440 Bayreuth, Germany — ²Biofluid Simulation and Modeling, Universität Bayreuth, 95440 Bayreuth, Germany

We study the dynamics of asymmetric, deformable particles in oscillatory, linear shear flow. By simulating the motion of a dumbbell, a ring polymer, and a capsule we show that cross-stream migration occurs for asymmetric elastic particles even in linear shear flow if the shear rate varies in time. The migration is generic as it does not depend on the particle dimension. Importantly, the migration velocity and migration direction are robust to variations of the initial particle orientation, making our proposed scheme suitable for sorting applications of various elastic Janus-like particles.