Regensburg 2016 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 29: Poster - Active Matter, Microswimmers and -fluidics, Statistical Physics Biosystems

DY 29.4: Poster

Dienstag, 8. März 2016, 18:15–21:00, Poster C

Bead-spring microswimmers in a MPCD fluid — •Hendrik Ender and Jan Kierfeld — Theoretische Physik I, Technische Universität Dortmund, Germany

Bead-spring structures undergoing cyclic shape changes in a viscous liquid can serve as model systems for artifical microswimmers. Closed ring-like bead-spring models can propel by cyclic shape changes, for example, induced by cyclic expansion and contraction of springs.

Using multi-particle collision dynamics, we simulate different swimmer shapes and show that cyclic changes of linker lengths can give rise to a net swimming motion. The model can be generalized by including more beads and represents a step towards the simulation of bigger capsule-like swimmers, which propel by cyclic swelling and shrinking.