Energy solutions for polymer aqueous solutions in two dimension

Chérif Amrouche (1) , El-Hacene E.H Ouazar (2)

1 LMAP - Laboratoire de Mathématiques et de leurs Applications [Pau]
2 ENS Kouba-Alger - École normale supérieure - Kouba-Alger

The aim of this article is to study a nonlinear system modeling a Non-Newtonian fluid of polymer aqueous solutions. We are interested here in the existence of weak solutions for the stationary problem in a bounded plane domain or in two-dimensional exterior domain. Due to the third order of derivatives in the non-linear term, it's difficult to obtain solution satisfying energy inequality. But with a good choice of boundary conditions, an adapt special basis and the use of the good properties of the trilinear form associated to the non-linear term, we obtain energy solutions. The problem in bounded domain is treated and the more difficult problem on non bounded domain too.

Mots clés: Non-Newtonian fluids; exterior problem; weighted Sobolev spaces

Domaines: Equations aux dérivées partielles [math.AP]

Chérif Amrouche, El-Hacene E.H Ouazar. Energy solutions for polymer aqueous solutions in two dimension. 2007. ⟨hal-00142054⟩