Stretch-coil transition and transport of fibers in cellular flows

Document Type

Article

Publication Date

8-2-2007

Abstract

It is shown that a slender elastic fiber moving in a Stokesian fluid can be susceptible to a buckling instability-termed the "stretch-coil" instability-when moving in the neighborhood of a hyperbolic stagnation point of the flow. When the stagnation point is part of an extended cellular flow, it is found that immersed fibers can move as random walkers across time-independent closed-streamline flow. It is also found that the flow is segregated into transport regions around hyperbolic stagnation points and their manifolds, and closed entrapment regions around elliptic points. © 2007 The American Physical Society.

Identifier

34547664677 (Scopus)

Publication Title

Physical Review Letters

External Full Text Location

https://doi.org/10.1103/PhysRevLett.99.058303

e-ISSN

10797114

ISSN

00319007

Issue

5

Volume

99

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