On Fully Discrete Finite Element Schemes for Equations of Motion of Kelvin-Voigt Fluids

On Fully Discrete Finite Element Schemes for Equations of Motion of Kelvin-Voigt Fluids

Year:    2013

International Journal of Numerical Analysis and Modeling, Vol. 10 (2013), Iss. 2 : pp. 481–507

Abstract

In this paper, we study two fully discrete schemes for the equations of motion arising in the Kelvin-Voigt model of viscoelastic fluids. Based on a backward Euler method in time and a finite element method in spatial direction, optimal error estimates which exhibit the exponential decay property in time are derived. In the later part of this article, a second order two step backward difference scheme is applied for temporal discretization and again exponential decay in time for the discrete solution is discussed. Finally, a priori error estimates are derived and results on numerical experiments conforming theoretical results are established.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2013-IJNAM-579

International Journal of Numerical Analysis and Modeling, Vol. 10 (2013), Iss. 2 : pp. 481–507

Published online:    2013-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    27

Keywords:    Viscoelastic fluids Kelvin-Voigt model a priori bounds backward Euler method second order backward difference scheme optimal error estimates.