TY - JOUR
T1 - A Multigrid Solver Based on Distributive Smoother and Residual Overweighting for Oseen Problems
JO - Numerical Mathematics: Theory, Methods and Applications
VL - 2
SP - 237
EP - 252
PY - 2015
DA - 2015/08
SN - 8
DO - http://doi.org/10.4208/nmtma.2015.w09si
UR - https://global-sci.org/intro/article_detail/nmtma/12409.html
KW - 
AB - <p style="text-align: justify;">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>