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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2402.12857 |
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| _version_ | 1866916131990667264 |
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| author | Kunik, Matthias Kolb, Adrian Müller, Siegfried Thein, Ferdinand |
| author_facet | Kunik, Matthias Kolb, Adrian Müller, Siegfried Thein, Ferdinand |
| contents | The ultra-relativistic Euler equations for an ideal gas are described in terms of the pressure, the spatial part of the dimensionless four-velocity and the particle density. Radially symmetric solutions of these equations are studied in two and three space dimensions. Of particular interest in the solutions are the formation of shock waves and a pressure blow up. For the investigation of these phenomena we develop a one-dimensional scheme using radial symmetry and integral conservation laws. We compare the numerical results with solutions of multi-dimensional high-order numerical schemes for general initial data in two space dimensions. The presented test cases and results may serve as interesting benchmark tests for multi-dimensional solvers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_12857 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Radially symmetric solutions of the ultra-relativistic Euler equations in several space dimensions Kunik, Matthias Kolb, Adrian Müller, Siegfried Thein, Ferdinand Mathematical Physics 35L45, 35L60, 35L65, 35L67 The ultra-relativistic Euler equations for an ideal gas are described in terms of the pressure, the spatial part of the dimensionless four-velocity and the particle density. Radially symmetric solutions of these equations are studied in two and three space dimensions. Of particular interest in the solutions are the formation of shock waves and a pressure blow up. For the investigation of these phenomena we develop a one-dimensional scheme using radial symmetry and integral conservation laws. We compare the numerical results with solutions of multi-dimensional high-order numerical schemes for general initial data in two space dimensions. The presented test cases and results may serve as interesting benchmark tests for multi-dimensional solvers. |
| title | Radially symmetric solutions of the ultra-relativistic Euler equations in several space dimensions |
| topic | Mathematical Physics 35L45, 35L60, 35L65, 35L67 |
| url | https://arxiv.org/abs/2402.12857 |