Particles held by springs in a linear shear flow exhibit oscillatory motion

Details Particles held by springs in a linear shear flow exhibit oscillatory motion Particles held by springs in a linear shear flow exhibit oscillatory motion

2006-04-26

arxiv.org/abs/physics/0604208v2

Physics

Fluid Dynamics

4 pages, 5 figures

Scientific paper

10.1103/PhysRevE.73.060801

The dynamics of small spheres, which are held by linear springs in a low Reynolds number shear flow at neighboring locations is investigated. The flow elongates the beads and the interplay of the shear gradient with the nonlinear behavior of the hydrodynamic interaction among the spheres causes in a large range of parameters a bifurcation to a surprising oscillatory bead motion. The parameter ranges, wherein this bifurcation is either super- or subcritical, are determined.

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