A Multigrid Solver based on Distributive Smoother and Residual Overweighting for Oseen Problems. Issue 2 (28th May 2015)

• Record Type: Journal Article
• Authors: Chen, Long; Hu, Xiaozhe; Wang, Ming; Xu, Jinchao
• Is Part Of: Numerical mathematics. Volume 8:Issue 2(2015)
• Page Start: 237
• Page End: 252
• Publication Date: 2015-05-28
• Subjects: Numerical analysis -- Periodicals; Numerical analysis; Periodicals; 518.05
• DOI: 10.4208/nmtma.2015.w09si
• Languages: English
• ISSNs: 1004-8979

Abstract

<abstract abstract-type="normal"> <title>Abstract</title> <p>An efficient multigrid solver for the Oseen problems discretized by Marker and Cell (MAC) scheme on staggered grid is developed in this paper. Least squares commutator distributive Gauss-Seidel (LSC-DGS) relaxation is generalized and developed for Oseen problems. Residual overweighting technique is applied to further improve the performance of the solver and a defect correction method is suggested to improve the accuracy of the discretization. Some numerical results are presented to demonstrate the efficiency and robustness of the proposed solver.</p> </abstract>