Hauptseminar Soft Matter SS 2019/Simulation of self propelled particles with and without hydrodynamics

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Datum
2019-05-03
Zeit
14:00
Thema
Simulation of self-propelled particles with and without hydrodynamics
Vortragender
Alexander Reinauer
Betreuer
Kai Szuttor

Contents

Modelling self-propelling organisms like bacteria in computer simulations can either be done by modifying the Langevin equation for a passive particle or by explicitly taking into account hydrodynamic interactions of the active particle and the solvent as well as inter-particle hydrodynamics.

In the presentation of this topic both modelling strategies and their underlying theories should be discussed. In addition, a few important results that have been published using those models are expected to be briefly introduced and presented in the larger context.

Literature

  1. ten Hagen, Borge, Sven van Teeffelen, and Hartmut Löwen. "Brownian motion of a self-propelled particle." Journal of Physics: Condensed Matter 23.19 (2011): 194119.
  2. Wittkowski, Raphael, and Hartmut Löwen. "Self-propelled Brownian spinning top: dynamics of a biaxial swimmer at low Reynolds numbers." Physical Review E 85.2 (2012): 021406.
  3. Ten Hagen, Borge, et al. "Can the self-propulsion of anisotropic microswimmers be described by using forces and torques?." Journal of Physics: Condensed Matter 27.19 (2015): 194110.
  4. Lobaskin, Vladimir, and Burkhard Dünweg. "A new model for simulating colloidal dynamics." New Journal of Physics 6.1 (2004): 54.
  5. Fischer, Lukas P., et al. "The raspberry model for hydrodynamic interactions revisited. I. Periodic arrays of spheres and dumbbells." The Journal of chemical physics 143.8 (2015): 084107.
  6. Lushi, Enkeleida, and Charles S. Peskin. "Modeling and simulation of active suspensions containing large numbers of interacting micro-swimmers." Computers & Structures 122 (2013): 239-248.
  7. Hernandez-Ortiz, Juan P., Christopher G. Stoltz, and Michael D. Graham. "Transport and collective dynamics in suspensions of confined swimming particles." Physical review letters 95.20 (2005): 204501.
  8. de Graaf, Joost, et al. "Understanding the onset of oscillatory swimming in microchannels." Soft Matter 12.21 (2016): 4704-4708.