Berlin 2012 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 22: Posters I

DY 22.21: Poster

Mittwoch, 28. März 2012, 17:00–19:00, Poster A

Molecular dynamics simulations of capillary rise in nano-channels — •Christian Thome and Heiko Rieger — Theoretische Physik, Universität des Saarlandes, Campus E2 6, D66123 Saarbrücken

The capillary rise of liquid-air interfaces, so called menisci, in nanometer scale pores displays time-dependencies that deviate from macroscopic laws like Lucas-Washburn. Motivated by experiments on the spontaneous imbibition in nano-porous vycor glass we study with the help of molecular dynamics simulations the capillary rise of fluid in nano-pores, nano-pore-junctions and nano-pore-intersections. We focus on the quantitative characterizaion of the influence of the wall / fluid particle interaction strength and present results for the fluid propagation, interface morphology and fluid density fluctuations.

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