Berlin 2012 – scientific programme

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BP: Fachverband Biologische Physik

BP 14: Membranes and Vesicles

BP 14.12: Talk

Wednesday, March 28, 2012, 12:45–13:00, H 1028

Dynamics of multiple vesicles under flow — •Badr Kaoui¹ and Jens Harting^1,2 — ¹Technische Universiteit Eindhoven, Postbus 513, 5600 MB Eindhoven, The Netherlands — ²Institut für Computerphysik, Universität Stuttgart, Pfaffenwaldring 27, D-70569 Stuttgart, Germany

We study the dynamical behavior under flow of systems consisting of multiple vesicles. We are interested in suspensions of giant unilamellar vesicles (GUVs) and multilamellar vesicles (MLVs). To this purpose we developed a code combining the lattice Boltzmann method and the immersed boundary method. We present simulations of a single GUV under shear flow to validate our method and to investigate the effect of confinement on the GUV's dynamics [Kaoui, Harting and Misbah, PRE 83, 066319 (2011)]. Afterwards we demonstrate that our method is able to capture the physics of multiple vesicles. The effect of polydispersity, the size of the vesicles and the action of gravity on the dynamical response of multiple vesicles subjected to shear flow are investigated