Regensburg 2010 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 35: Posters: Statistical Physics, Evolution, and Networks

BP 35.4: Poster

Donnerstag, 25. März 2010, 17:15–20:00, Poster B2

Advection and Reaction in Open Flows — •Mitja Kleider, Izabella Benczik, and Jürgen Vollmer — Max-Planck-Institut für Dynamik und Selbstorganisation, Göttingen

Particles transported by blood flow can exhibit chaotic motion when wall irregularities are present [1]. This chaotic motion can influence physiological processes in the blood, for instance the activation and deposition of platelets that are involved in the thrombus formation.

To clarify the role played by chaotic advection in this process, we study a spatial model of a chaotic flow in which we define an activation and deposition region. Platelets can be deposited only if they are active when they enter the deposition region, i.e. if they have visited the activation region at a previous time. In this communication we discuss how chaoticity influences the deposition rate of platelets and enhances the growth of plaques and thrombi.

[1] Chaotic advection in blood flow, A. B. Schelin, Gy. Karolyi, A. P. S. de Moura, N. A. Booth, and C. Grebogi, Phys. Rev. E 80, 016213 (2009)