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Parallel two-step finite element algorithm for the stationary incompressible magnetohydrodynamic equations

Yuan Ping (Mathematics and System Science, Wulumuqi, China)
Haiyan Su (Xinjiang University, Urumqi, China and Mathematics and System Sciences, Wulumuqi, China)
Xinlong Feng (Xinjiang University, Urumqi, China)

International Journal of Numerical Methods for Heat & Fluid Flow

ISSN: 0961-5539

Article publication date: 31 July 2019

Issue publication date: 11 September 2019

Abstract

Purpose

The purpose of this paper is to propose a local parallel finite element algorithm based on fully overlapping domain decomposition technique to solve the incompressible magnetohydrodynamic equations.

Design/methodology/approach

The algorithm uses a lower-order element pair to compute an initial approximation by the Oseen-type iteration and uses a higher-order element pair to solve a linear system in each processor.

Findings

Besides, the convergence analysis of local parallel finite element algorithm is given. Finally, numerical experiments are presented to verify the efficiency of the proposed algorithm.

Originality/value

Compared with the numerical solution of the common two-step method, this method is easy to realize and can produce a more accurate solution. And, this approach is executed in parallel, so it saves a lot of computational time.

Keywords

Citation

Ping, Y., Su, H. and Feng, X. (2019), "Parallel two-step finite element algorithm for the stationary incompressible magnetohydrodynamic equations", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 29 No. 8, pp. 2709-2727. https://doi.org/10.1108/HFF-10-2018-0552

Publisher

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Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited