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Berlin 2015 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 60: Poster - complex systems and data analysis

DY 60.4: Poster

Donnerstag, 19. März 2015, 16:00–18:00, Poster A

Inhomogeneous shear-induced alignment of anisotropic binary mixtures — •Henning Reinken, Rodrigo Lugo-Frias, and Sabine H. L. Klapp — Institut für Theoretische Physik, Technische Universität Berlin, Hardenbergstr. 36, 10623 Berlin, Germany

Due to their presence in a wide variety of biological contexts and technological applications, the study of homogenous [1] and inhomogeneous mixtures of anisotropic particles has increased considerably in recent years. One important question in that context is how their rheological properties change when they are driven out of equilibrium by means of a steady flow.

In the present work we develop an inhomogeneous equation for the shear-induced alignment of anisotropic binary mixtures in the scope of irreversible thermodynamics [2,3]. To this end, we calculate the entropy production that accounts for flow velocity, pressure and alignment. To guarantee a positive value, we establish the appropriate linear relations between the thermodynamic fluxes and forces.

[1] R. Lugo-Frias and S. H. L. Klapp, in preparation (2015).
[2] S. R.  de Groot, P. Mazur, Non-Equilibrium Thermodynamics, Ed. Dover (1984).
[3] S. Hess, I. Pardowitz, Z.Naturforsch. A 36a, 554 (1981).

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