Abstract
A new Samarskii domain decomposition method for solving two-dimensional convection–diffusion equations is proposed. In this procedure, interface values between subdomains are computed by the Saul’yev asymmetric difference schemes based on Samarskii scheme; interior values are calculated by the Samarskii scheme. The new algorithm obtains accuracy of Samarskii scheme while maintaining parallelism and unconditional stability. Numerical examples show the accuracy and parallel efficiency of the new algorithm.
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Acknowledgements
The authors would like to thank referees for their comments and suggestions which have helped to improve the paper. This work was supported by National Natural Science Foundation of China (no. 12101536), PhD research startup foundation of Yantai University (no. 2219002) and LCP Fund for Young Scholar. The authors thank Prof. Guangwei Yuan and Dr. Pengcheng Mu for interesting discussions on the subject.
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Communicated by Abimael Loula.
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Xue, G., Gao, Y. A Samarskii domain decomposition method for two-dimensional convection–diffusion equations. Comp. Appl. Math. 41, 283 (2022). https://doi.org/10.1007/s40314-022-01986-0
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DOI: https://doi.org/10.1007/s40314-022-01986-0