A parallel partition of unity method for the unsteady Stokes equations
International Journal of Numerical Methods for Heat & Fluid Flow
ISSN: 0961-5539
Article publication date: 4 September 2017
Abstract
Purpose
The purpose of this paper is to propose a parallel partition of unity method to solve the time-dependent Stokes problems.
Design/methodology/approach
This paper solved the time-dependent Stokes equations using the finite element method and the partition of unity method.
Findings
The proposed method in this paper obtained the same accuracy as the standard Galerkin method, but it, in general, saves time.
Originality/value
Based on a combination of the partition of unity method and the finite element method, the authors, in this paper, propose a new parallel partition of unity method to solve the unsteady Stokes equations. The idea is that, at each time step, one need to only solve a series of independent local sub-problems in parallel instead of one global problem. Numerical tests show that the proposed method not only reaches the same convergence orders as the fully discrete standard Galerkin method but also saves ample computing time.
Keywords
Citation
Zhao, X., Hou, Y. and Du, G. (2017), "A parallel partition of unity method for the unsteady Stokes equations", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 27 No. 9, pp. 2105-2114. https://doi.org/10.1108/HFF-04-2016-0169
Publisher
:Emerald Publishing Limited
Copyright © 2017, Emerald Publishing Limited