Optimal Mixed $H-P$ Finite Element Methods for Stokes and Non-Newtonian Flow

Optimal Mixed $H-P$ Finite Element Methods for Stokes and Non-Newtonian Flow

Year:    2001

Author:    Ping-Bing Ming, Zhong-Ci Shi

Journal of Computational Mathematics, Vol. 19 (2001), Iss. 1 : pp. 67–76

Abstract

Based upon a new mixed variational formulation for the three-field Stokes equations and linearized Non-Newtonian flow, an $h-p$ finite element method is presented with or without a stabilization. As to the variational formulation without stabilization, optimal error bounds in $h$ as well as in $p$ are obtained. As with stabilization, optimal error bounds are obtained which is optimal in $h$ and one order deterioration in $p$ for the pressure, that is consistent with numerical results in [9,12] and therefore solved the problem therein. Moreover, we proposed a stabilized formulation which is optimal in both $h$ and $p$.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2001-JCM-8958

Journal of Computational Mathematics, Vol. 19 (2001), Iss. 1 : pp. 67–76

Published online:    2001-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    10

Keywords:    Mixed hp-finite element method Non-Newtonian flow Stabilisation Scaled weak B-B inequality.

Author Details

Ping-Bing Ming

Zhong-Ci Shi