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Volume 16, Issue 6
A Novel Temporal Two-Grid Compact Finite Difference Scheme for the Viscous Burgers’ Equation

Xiangyi Peng, Wenlin Qiu, Jiangxing Wang & Lina Ma

Adv. Appl. Math. Mech., 16 (2024), pp. 1358-1380.

Published online: 2024-10

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  • Abstract

We present a novel two-grid compact finite difference scheme for the viscous Burgers’ equation in this paper, where the second-order Crank-Nicolson method is used to deal with the time marching, the compact finite difference formula is used to approximate the spatial second-order term, and the nonlinear convection term is discretized using the developed nonlinear fourth-order operator, providing the scheme with both high fourth-order spatial convergence and a low computational cost. The scheme is then established in three steps, with the first step being the construction of a nonlinear coarse-grid compact finite difference scheme that is solved iteratively using a fixed point iterative method, the second step being the application of the Lagrange interpolation formula to obtain a rough solution on the fine grid, and the third step being the development of the linearized fine-grid compact finite difference scheme. We also perform a convergence and stability analysis on the developed scheme, and the results show that the scheme can achieve spatial fourth-order and temporal second-order convergence. Finally, a number of numerical examples are provided to validate the theoretical predictions.

  • AMS Subject Headings

65M06, 65M22, 65N12

  • Copyright

COPYRIGHT: © Global Science Press

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@Article{AAMM-16-1358, author = {Peng , XiangyiQiu , WenlinWang , Jiangxing and Ma , Lina}, title = {A Novel Temporal Two-Grid Compact Finite Difference Scheme for the Viscous Burgers’ Equation}, journal = {Advances in Applied Mathematics and Mechanics}, year = {2024}, volume = {16}, number = {6}, pages = {1358--1380}, abstract = {

We present a novel two-grid compact finite difference scheme for the viscous Burgers’ equation in this paper, where the second-order Crank-Nicolson method is used to deal with the time marching, the compact finite difference formula is used to approximate the spatial second-order term, and the nonlinear convection term is discretized using the developed nonlinear fourth-order operator, providing the scheme with both high fourth-order spatial convergence and a low computational cost. The scheme is then established in three steps, with the first step being the construction of a nonlinear coarse-grid compact finite difference scheme that is solved iteratively using a fixed point iterative method, the second step being the application of the Lagrange interpolation formula to obtain a rough solution on the fine grid, and the third step being the development of the linearized fine-grid compact finite difference scheme. We also perform a convergence and stability analysis on the developed scheme, and the results show that the scheme can achieve spatial fourth-order and temporal second-order convergence. Finally, a number of numerical examples are provided to validate the theoretical predictions.

}, issn = {2075-1354}, doi = {https://doi.org/10.4208/aamm.OA-2022-0302}, url = {http://global-sci.org/intro/article_detail/aamm/23471.html} }
TY - JOUR T1 - A Novel Temporal Two-Grid Compact Finite Difference Scheme for the Viscous Burgers’ Equation AU - Peng , Xiangyi AU - Qiu , Wenlin AU - Wang , Jiangxing AU - Ma , Lina JO - Advances in Applied Mathematics and Mechanics VL - 6 SP - 1358 EP - 1380 PY - 2024 DA - 2024/10 SN - 16 DO - http://doi.org/10.4208/aamm.OA-2022-0302 UR - https://global-sci.org/intro/article_detail/aamm/23471.html KW - Two-grid, compact finite difference, viscous Burgers, stability, error analysis. AB -

We present a novel two-grid compact finite difference scheme for the viscous Burgers’ equation in this paper, where the second-order Crank-Nicolson method is used to deal with the time marching, the compact finite difference formula is used to approximate the spatial second-order term, and the nonlinear convection term is discretized using the developed nonlinear fourth-order operator, providing the scheme with both high fourth-order spatial convergence and a low computational cost. The scheme is then established in three steps, with the first step being the construction of a nonlinear coarse-grid compact finite difference scheme that is solved iteratively using a fixed point iterative method, the second step being the application of the Lagrange interpolation formula to obtain a rough solution on the fine grid, and the third step being the development of the linearized fine-grid compact finite difference scheme. We also perform a convergence and stability analysis on the developed scheme, and the results show that the scheme can achieve spatial fourth-order and temporal second-order convergence. Finally, a number of numerical examples are provided to validate the theoretical predictions.

Peng , XiangyiQiu , WenlinWang , Jiangxing and Ma , Lina. (2024). A Novel Temporal Two-Grid Compact Finite Difference Scheme for the Viscous Burgers’ Equation. Advances in Applied Mathematics and Mechanics. 16 (6). 1358-1380. doi:10.4208/aamm.OA-2022-0302
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