Berlin 2008 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 22: POSTERS Micro- and Nanofluidics
CPP 22.11: Poster
Mittwoch, 27. Februar 2008, 16:00–18:30, Poster A
Lattice Boltzman and DPD Electrohydrodyamics simulations — Jens Smiatek1, Friederike Schmid1, •Marcello Sega2, and Christian Holm2 — 1Fakultät für Physik, Universität Bielefeld, Universitätsstraße 25, D-33615 Bielefeld, Germany — 2Frankfurt Institute for Advanced Studies, Ruth-Moufang Str. 1, D-60438 Frankfurt am Main, Germany
In the framework of the solution of coupled Navier-Stokes / Molecular Dynamics simulations of Electrohydrodynamic systems, we present the results of a comparison between Lattice Boltzmann and Dissipative Particle Dynamics.
The two methods, respectively based on the solution of the Boltzmann equation on a lattice, and on a momentum-conserving Galilean-invariant particle based thermostat, have been recently implemented into the ESPResSo simulation package. Convergence of physical observables and relative limits and strengths of the two approaches are evaluated, as well as their computational efficiency.
The benchmark system is that of an electroosmotic flow in a slit pore, where explicit ions are taken into account, with full periodic electrostatic treatment and hydrodynamic interactions.