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Dresden 2009 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 38: POSTERS Micro- and Nanofluidics

CPP 38.11: Poster

Thursday, March 26, 2009, 17:00–19:30, P3

Contact angle determination in multicomponent lattice Boltzmann models — •Sebastian Schmieschek and Jens Harting — Institut für Computerphysik, Pfaffenwaldring 27, 70569 Stuttgart

Droplets on hydrophobic surfaces are common in microfluidic applications and there exists a number of commonly used multicomponent and multiphase lattice Boltzmann schemes to study such systems. In this contribution we focus on a popular implementation of a multicomponent model as introduced by Shan and Chen. Here, interactions between different components are implemented as repulsive forces whose strength is determined by phenomenological parameters. In this contribution we present simulations of a droplet on a hydrophobic surface. We investigate the dependence of the contact angle on the simulation parameters and quantitatively compare different approaches to measure it.

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