Active flux for triangular meshes for compressible flows problems
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866913481457926144 |
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| author | Abgrall, Rémi Lin, Jianfang Liu, Yongle |
| author_facet | Abgrall, Rémi Lin, Jianfang Liu, Yongle |
| contents | In this article, we show how to construct a numerical method for solving hyperbolic problems, whether linear or nonlinear, using a continuous representation of the variables and their mean value in each triangular element. This type of approach has already been introduced by Roe, and others, in the multidimensional framework under the name of Active flux, see \cite{AF1,AF2,AF3,AF4,AF5}. Here, the presentation is more general and follows \cite{Abgrall_AF,BarzukowAbgrall}. { Various} examples show the good behavior of the method in both linear and nonlinear cases, including non-convex problems. The expected order of precision is obtained in both the linear and nonlinear cases. This work represents a step towards the development of methods in the spirit of virtual finite elements for linear or nonlinear hyperbolic problems, including the case where the solution is not regular. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_11271 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Active flux for triangular meshes for compressible flows problems Abgrall, Rémi Lin, Jianfang Liu, Yongle Numerical Analysis 65M06, 65M08, 65M60 In this article, we show how to construct a numerical method for solving hyperbolic problems, whether linear or nonlinear, using a continuous representation of the variables and their mean value in each triangular element. This type of approach has already been introduced by Roe, and others, in the multidimensional framework under the name of Active flux, see \cite{AF1,AF2,AF3,AF4,AF5}. Here, the presentation is more general and follows \cite{Abgrall_AF,BarzukowAbgrall}. { Various} examples show the good behavior of the method in both linear and nonlinear cases, including non-convex problems. The expected order of precision is obtained in both the linear and nonlinear cases. This work represents a step towards the development of methods in the spirit of virtual finite elements for linear or nonlinear hyperbolic problems, including the case where the solution is not regular. |
| title | Active flux for triangular meshes for compressible flows problems |
| topic | Numerical Analysis 65M06, 65M08, 65M60 |
| url | https://arxiv.org/abs/2312.11271 |