Inventiones mathematicae

, Volume 191, Issue 2, pp 427–500

Global existence of weak solutions to the FENE dumbbell model of polymeric flows

Article

DOI: 10.1007/s00222-012-0399-y

Cite this article as:
Masmoudi, N. Invent. math. (2013) 191: 427. doi:10.1007/s00222-012-0399-y

Abstract

Systems coupling fluids and polymers are of great interest in many branches of sciences. One of the most classical models to describe them is the FENE (Finite Extensible Nonlinear Elastic) dumbbell model. We prove global existence of weak solutions to the FENE dumbbell model of polymeric flows. The main difficulty is the passage to the limit in a nonlinear term that has no obvious compactness properties. The proof uses many weak convergence techniques. In particular it is based on the control of the propagation of strong convergence of some well chosen quantity by studying a transport equation for its defect measure. In addition, this quantity controls a rescaled defect measure of the gradient of the velocity.

Mathematics Subject Classification

35Q30 82C31 76A05 

Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  1. 1.Courant InstituteNew York UniversityNew YorkUSA

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