Berlin 2018 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 27: Microfluidics
DY 27.4: Vortrag
Dienstag, 13. März 2018, 12:00–12:15, BH-N 128
Mesoscopic simulations of dense suspensions of capsules in confined shear flow — •Othmane Aouane1, Maarten Wouters2, Andrea Scagliarini3, and Jens Harting1,2 — 1Forschungszentrum Jülich GmbH, Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Nürnberg, Germany — 2Department of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands — 3Istituto per le Applicazioni del Calcolo, Rome, Italy
Complex fluids are ubiquitous in soft matter systems, such as colloidal suspensions and biofluids (tissues and blood). Understanding the dynamics of such systems is important for example for industrial production or disease detection. However, such systems are hard to solve analytically since they follow non-linear dynamics and might involve many-body interactions and multiscale problems. These circumstances call for numerical methods and computer simulations which can also provide access to observables not traceable in experiments such as the local fluid properties. In this work, we focus on computational simulations of dense suspensions of soft polymeric coated core-shells, i.e. capsules up to to 75% volume fraction under a confined shear flow using the lattice Boltzmann method with an emphasis on their local rheology. This study includes the effect of the mechanical properties of the individual capsules (stiffness/softness) on the flow behavior.