| Simulation of self-propelled microorganisms The collective swarming behavior of numerous self-propelled
microorganisms at low Reynolds number (Stokes flow), e.g. a
swarm of Escherichia coli (E. coli) bacteria, is still
inadequately understood. Several analytical and numerical
studies have been performed to gain insight into the
behavior of a single or a couple of such self-driven
devices. However, most of these approaches are limited to
simple geometries of the swimming device or the surrounding
channel domain. Reaching the required high density of
swimmers is one of the challenges that has to be solved in
order to observe phenomena like pattern formation or self-
organization.
In our project we consistently couple our lattice Boltzmann
fluid simulation framework waLBerla (widely applicable
Lattice Boltzmann solver from Erlangen) with our rigid body
simulation tool pe. This allows us to simulate self-
propelled devices consisting of fully resolved rigid bodies
of arbitrary shape in 3D. An effortless exchange of the
constituents of the considered micro devices, adapting the
surrounding channel geometry according to our needs, or
regarding regimes beyond low Reynolds numbers are only some
of the potential benefits associated with the use of this
coupled software framework.
| Projektleitung:
Prof. Dr. Ulrich Rüde, Prof. Dr.-Ing. Harald Köstler, Akad. Dir.
Beteiligte:
Prof. Dr. Ana-Suncana Smith, Prof. Dr. Klaus Mecke, Dr.-Ing. Kristina Pickl, M. Sc., Dr. Jayant Pande
Stichwörter:
Stokes flow, Self-propelled microorganism, Lattice Boltzmann method, Numerical simulation, Computational Fluid Dynamics
Beginn: 1.1.2011
Förderer:
EAM Cluster of Excellence Engineering of Advanced Materials
| | Publikationen |
|---|
Pickl, Kristina ; Götz, Jan ; Iglberger, Klaus ; Pande, Jayant ; Mecke, Klaus ; Smith, Ana-Suncana ; Rüde, Ulrich: All good things come in threes - Three beads learn to swim with lattice Boltzmann and a rigid body solver. In: Journal of Computational Science 3 (2012), Nr. 5, S. 374-387
[doi>10.1016/j.jocs.2012.04.009] | Pickl, Kristina ; Hofmann, Matthias ; Preclik, Tobias ; Köstler, Harald ; Smith, Ana-Suncana ; Rüde, Ulrich: Parallel Simulations of Self-propelled Microorganisms. In: Bader, Michael ; Bode, Arndt ; Bungartz, Hans-Joachim ; Gerndt, Michael ; Joubert, Gerhard R. ; Peters, Frans (Hrsg.) : Parallel Computing: Accelerating Computational Science and Engineering (CSE). Clifton, Amsterdam, Tokyo : IOS Press, 2014, (Advances in Parallel Computing Bd. 25), S. 395-404. - ISBN 978-1-61499-381-0
[doi>10.3233/978-1-61499-381-0-395] |
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