Dynamics of flexible fibers in shear flow

Agnieszka M. Slowicka; Eligiusz Wajnryb; Maria L. Ekiel-Jezewska

doi:10.1063/1.4931598

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arXiv · 1504.00791

Dynamics of flexible fibers in shear flow

Agnieszka M. Slowicka·Eligiusz Wajnryb·Maria L. Ekiel-Jezewska

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Abstract

Dynamics of flexible non-Brownian fibers in shear flow at low-Reynolds-number are analyzed numerically for a wide range of the ratios A of the fiber bending force to the viscous drag force. Initially, the fibers are aligned with the flow, and later they move in the plane perpendicular to the flow vorticity. A surprisingly rich spectrum of different modes is observed when the value of A is systematically changed, with sharp transitions between coiled and straightening out modes, period-doubling bifurcations from periodic to migrating solutions, irregular dynamics and chaos.

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Agnieszka M. Slowicka, Eligiusz Wajnryb, Maria L. Ekiel-Jezewska. 2015-04-03. Dynamics of flexible fibers in shear flow. https://doi.org/10.1063/1.4931598

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