DPG Phi
Verhandlungen
Verhandlungen
DPG

Dresden 2014 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

DY: Fachverband Dynamik und Statistische Physik

DY 26: Focus Session: Slow Dynamics in Glasses and Granular Matter I (joint session DY/ CPP/ DF)

DY 26.8: Talk

Thursday, April 3, 2014, 12:00–12:15, HÜL 186

Lattice Boltzmann Simulations for Glass-Forming Liquids — •Simon Papenkort1,2 and Thomas Voigtmann1,21Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt, Köln, Germany — 2Zukunftskolleg und Fachbereich Physik, Universität Konstanz, Germany

In continuum mechanics, the Navier-Stokes (NS) equation is used to study fluid flows. The Lattice Boltzmann (LB) model is an efficient method to find solutions of the NS equation of Newtonian liquids even for complex flow geometries.

Complex fluids, such as glass formers, colloidal suspensions, or granular media, display a wide range of non-Newtonian flow effects, determined by the interplay between slow structural dynamics on the microscopic scale, and the mesoscopic flow field. Prominent examples are shear thinning and yield stresses, leading to plug flow in channels.

Starting from first principles, mode coupling theory of the glass transition is able to provide constitutive equations that describe the history effects determining the flow of glass-forming fluids. We present results from a new LB scheme that allows to include memory-integral effects in fluid-mechanics simulations.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2014 > Dresden