Dresden 2014 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 41: Poster - Pattern/ Nonlinear Dyn./ Fluids/ Granular/ Critical Phen.

DY 41.39: Poster

Donnerstag, 3. April 2014, 17:00–19:00, P3

Domain growth and coarsening of liquid droplets in vapor medium in a phase separating van der Waals fluid with SPH in three dimensions — •Martin Pütz and Peter Nielaba — University of Konstanz, Department of Physics, 78457 Konstanz, Germany

We study the dynamics of liquid-vapor phase separation of a van der Waals fluid induced by homogeneous nucleation and in later stage the domain growth and coarsening process towards equilibrated systems. Therefore we performed simulations in three dimensions with Smoothed Particlel Hydrodynamics (SPH) which provides the possibility to follow the dynamics through different time scales. The coexistence region and hence the process of homogeneous nucleation arises naturally by the implementation of the well known van der Waals equation as an equation of state and by a thermal conduction equation.