Investigation and analysis of the numerical approach to solve the multi-term time-fractional advection-diffusion model
In this paper, a methodical approach is presented to approximate the multi-term fractional advection-diffusion model (MT-FAD). The Lagrange squared interpolation is used to discretize temporal fractional derivatives, and Legendre polynomials are shifted as an operator to discretize the spatial fract...
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AIMS Press
2023-10-01
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| Series: | AIMS Mathematics |
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| Online Access: | https://www.aimspress.com/article/doi/10.3934/math.20231509?viewType=HTML |
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| author | Yones Esmaeelzade Aghdam Hamid Mesgarani Zeinab Asadi Van Thinh Nguyen |
| author_facet | Yones Esmaeelzade Aghdam Hamid Mesgarani Zeinab Asadi Van Thinh Nguyen |
| author_sort | Yones Esmaeelzade Aghdam |
| collection | DOAJ |
| description | In this paper, a methodical approach is presented to approximate the multi-term fractional advection-diffusion model (MT-FAD). The Lagrange squared interpolation is used to discretize temporal fractional derivatives, and Legendre polynomials are shifted as an operator to discretize the spatial fractional derivatives. The advantage of these numerical techniques lies in the orthogonality of Legendre polynomials and its matrix operations. A quadratic implicit design as well as its stability and convergence analysis are evaluated. It should be noted that the theoretical proof obtained from this study represents the first results for these numerical schemes. Finally, we provide three numerical examples to verify the validity of the proposed methods and demonstrate their accuracy and effectiveness in comparison with previous studies shown in [W. P. Bu, X. T. Liu, Y. F. Tang, J. Y. Yang, Finite element multigrid method for multi-term time fractional advection diffusion equations, Int. J. Model. Simul. Sci. Comput., 6 (2015), 1540001]. |
| first_indexed | 2024-03-11T10:47:27Z |
| format | Article |
| id | doaj.art-ca97f5f445064c179be3ff73de9817c8 |
| institution | Directory Open Access Journal |
| issn | 2473-6988 |
| language | English |
| last_indexed | 2024-03-11T10:47:27Z |
| publishDate | 2023-10-01 |
| publisher | AIMS Press |
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| spelling | doaj.art-ca97f5f445064c179be3ff73de9817c82023-11-14T01:31:02ZengAIMS PressAIMS Mathematics2473-69882023-10-01812294742948910.3934/math.20231509Investigation and analysis of the numerical approach to solve the multi-term time-fractional advection-diffusion modelYones Esmaeelzade Aghdam0Hamid Mesgarani1Zeinab Asadi2Van Thinh Nguyen 31. Department of Mathematics, Faculty of Science, Shahid Rajaee Teacher Training University, Tehran, 16785-136, Iran1. Department of Mathematics, Faculty of Science, Shahid Rajaee Teacher Training University, Tehran, 16785-136, Iran1. Department of Mathematics, Faculty of Science, Shahid Rajaee Teacher Training University, Tehran, 16785-136, Iran2. Department of Civil and Environmental Engineering, Seoul National University, Seoul, South KoreaIn this paper, a methodical approach is presented to approximate the multi-term fractional advection-diffusion model (MT-FAD). The Lagrange squared interpolation is used to discretize temporal fractional derivatives, and Legendre polynomials are shifted as an operator to discretize the spatial fractional derivatives. The advantage of these numerical techniques lies in the orthogonality of Legendre polynomials and its matrix operations. A quadratic implicit design as well as its stability and convergence analysis are evaluated. It should be noted that the theoretical proof obtained from this study represents the first results for these numerical schemes. Finally, we provide three numerical examples to verify the validity of the proposed methods and demonstrate their accuracy and effectiveness in comparison with previous studies shown in [W. P. Bu, X. T. Liu, Y. F. Tang, J. Y. Yang, Finite element multigrid method for multi-term time fractional advection diffusion equations, Int. J. Model. Simul. Sci. Comput., 6 (2015), 1540001].https://www.aimspress.com/article/doi/10.3934/math.20231509?viewType=HTMLmulti-term fractional advection-diffusion modelcollocation methodlegendre polynomialconvergence analysis |
| spellingShingle | Yones Esmaeelzade Aghdam Hamid Mesgarani Zeinab Asadi Van Thinh Nguyen Investigation and analysis of the numerical approach to solve the multi-term time-fractional advection-diffusion model AIMS Mathematics multi-term fractional advection-diffusion model collocation method legendre polynomial convergence analysis |
| title | Investigation and analysis of the numerical approach to solve the multi-term time-fractional advection-diffusion model |
| title_full | Investigation and analysis of the numerical approach to solve the multi-term time-fractional advection-diffusion model |
| title_fullStr | Investigation and analysis of the numerical approach to solve the multi-term time-fractional advection-diffusion model |
| title_full_unstemmed | Investigation and analysis of the numerical approach to solve the multi-term time-fractional advection-diffusion model |
| title_short | Investigation and analysis of the numerical approach to solve the multi-term time-fractional advection-diffusion model |
| title_sort | investigation and analysis of the numerical approach to solve the multi term time fractional advection diffusion model |
| topic | multi-term fractional advection-diffusion model collocation method legendre polynomial convergence analysis |
| url | https://www.aimspress.com/article/doi/10.3934/math.20231509?viewType=HTML |
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