Regensburg 2016 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 15: Posters - Complex Fluids and Soft Matter

BP 15.2: Poster

Montag, 7. März 2016, 17:30–19:30, Poster C

Platelet orientation in laminar flow with no-slip and free-slip boundary conditions — •Lukas Schrack and Stephan Gekle — Biofluid Simulation and Modeling, University of Bayreuth, Germany

We investigate the orientation of platelet-shaped colloidal particles for a pressure driven laminar flow using Lattice Boltzmann method. The alignment is measured by the Hermans orientation parameter. The radial orientation distribution of platelets within a cylinder and a liquid jet is studied. The liquid jet is simulated by a free moving fluid with variable diameter.

We are interested in the influence of no-slip and free-slip boundary conditions on the orientation parameter especially within the transition zone between a cylinder and a liquid jet.

Our simulation results are compared with experimental data of sodium hectorite measured by small angle X-ray scattering.