Scaling of singular structures in extensional flow of dilute polymer solutions

Details Scaling of singular structures in extensional flow of dilute polymer solutions Scaling of singular structures in extensional flow of dilute polymer solutions

2009-01-30

arxiv.org/abs/0901.4868v1

J. Non-Newtonian Fluid Mech. 153 (2008) 183-190

Physics

Fluid Dynamics

16 pages, 8 figures

Scientific paper

10.1016/j.jnnfm.2007.12.009

Recently singular solutions have been discovered in purely elongational flows of visco-elastic fluids. We surmise that these solutions are the mathematical structures underlying the so-called birefringent strands seen experimentally. In order to facilitate future experimental studies of these we derive a number of asymptotic results for the scaling of the width and extension of the near-singular structures in the FENE-P model for polymers of finite extensibility.

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