On non-Newtonian fluids with convective effects

We study a system of partial differential equations describing a steady thermoconvective flow of a non-Newtonian fluid. We assume that the stress tensor and the heat flux depend on temperature and satisfy the conditions of p,q-coercivity with $p>\frac{2n}{n+2}$, $q>\frac{np}{p(n+1)-n}$, re...

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Bibliographic Details
Main Authors: Sigifredo Herron, Elder J. Villamizar-Roa
Format: Article
Language:English
Published: Texas State University 2017-06-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2017/155/abstr.html
Description
Summary:We study a system of partial differential equations describing a steady thermoconvective flow of a non-Newtonian fluid. We assume that the stress tensor and the heat flux depend on temperature and satisfy the conditions of p,q-coercivity with $p>\frac{2n}{n+2}$, $q>\frac{np}{p(n+1)-n}$, respectively. Considering Dirichlet boundary conditions for the velocity and a mixed and nonlinear boundary condition for the temperature, we prove the existence of weak solutions. We also analyze the existence and uniqueness of strong solutions for small and suitably regular data.
ISSN:1072-6691