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Simulation of elastic filaments interacting with a viscous pulsatile flow. (English) Zbl 1158.76458
Summary: Motivated by the need to understand the motion of ruptured atherosclerosis plaque fragments in a flowing blood, we simulated flexible elastic filaments interacting with a viscous pulsatile flow in two dimensions using the immersed boundary method. Our simulations show that (1) a flexible horizontal filament positioned perpendicularly to the flow is a stable configuration and (2) hydrodynamical forces prevent adhesion of filaments but mutual interaction of vortical fields yields clustering of filaments into groups that may be called “aggregation”.

76Z05 Physiological flows
76M25 Other numerical methods (fluid mechanics) (MSC2010)
74F10 Fluid-solid interactions (including aero- and hydro-elasticity, porosity, etc.)
92C10 Biomechanics
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