Finite Element Approximation of the Non-Isothermal Stokes-Oldroyd Equations

Finite Element Approximation of the Non-Isothermal Stokes-Oldroyd Equations

Year:    2007

International Journal of Numerical Analysis and Modeling, Vol. 4 (2007), Iss. 3-4 : pp. 425–440

Abstract

We consider the Stokes-Oldroyd equations, defined here as the Stokes equations with the Newtonian constitutive equation explicitly included. Thus a polymer-like stress tensor is included so that the dependent variable structure of a viscoelastic model is in place. The energy equation is coupled with the mass, momentum, and constitutive equations through the use of temperature-dependent viscosity terms in both the constitutive model and the momentum equation. Earlier works assumed temperature-dependent constitutive (polymer) and Newtonian (solvent) viscosities when describing the model equations, but made the simplifying assumption of a constant solvent viscosity when carrying out analysis and computations; we assume no such simplification. Our analysis coupled with numerical solution of the problem with both temperature-dependent viscosities distinguishes this work from earlier efforts.

You do not have full access to this article.

Already a Subscriber? Sign in as an individual or via your institution

Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2007-IJNAM-870

International Journal of Numerical Analysis and Modeling, Vol. 4 (2007), Iss. 3-4 : pp. 425–440

Published online:    2007-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    16

Keywords:    viscous fluid non-isothermal finite elements Stokes-Oldroyd.