From particles to precision. Simulating subsonic turbulence with Smoothed Particle Hydrodynamics
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arXiv
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| Hauptverfasser: | , , , , , , , , |
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| Format: | Preprint |
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2025
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| author | Cabezón, Rubén M. García-Senz, Domingo Avril, Oliver Simsek, Osman Seckin Keller, Sebastian Lechuga, Axel S. Mayer, Lucio Klessen, Ralf Ciorba, Florina M. |
| author_facet | Cabezón, Rubén M. García-Senz, Domingo Avril, Oliver Simsek, Osman Seckin Keller, Sebastian Lechuga, Axel S. Mayer, Lucio Klessen, Ralf Ciorba, Florina M. |
| contents | Direct numerical simulation of subsonic turbulence with smoothed particle hydrodynamics (SPH) has traditionally been hampered by zeroth-order (E0) errors, inaccurate gradient evaluations, and excessive numerical dissipation. We demonstrate that the recently developed SPH-EXA code can overcome these challenges, producing results similar to those of other state-of-the-art non-SPH codes, such as AREPO and GIZMO. We show that SPH-EXA accurately reproduces the Kolmogorov inertial range scaling in the subsonic regime with increasing resolution, closely matching state-of-the-art non-SPH methods. This is an outstanding result given the important role of SPH codes in astrophysics and cosmology, and the ubiquity of turbulent phenomena. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_10273 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | From particles to precision. Simulating subsonic turbulence with Smoothed Particle Hydrodynamics Cabezón, Rubén M. García-Senz, Domingo Avril, Oliver Simsek, Osman Seckin Keller, Sebastian Lechuga, Axel S. Mayer, Lucio Klessen, Ralf Ciorba, Florina M. Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics Direct numerical simulation of subsonic turbulence with smoothed particle hydrodynamics (SPH) has traditionally been hampered by zeroth-order (E0) errors, inaccurate gradient evaluations, and excessive numerical dissipation. We demonstrate that the recently developed SPH-EXA code can overcome these challenges, producing results similar to those of other state-of-the-art non-SPH codes, such as AREPO and GIZMO. We show that SPH-EXA accurately reproduces the Kolmogorov inertial range scaling in the subsonic regime with increasing resolution, closely matching state-of-the-art non-SPH methods. This is an outstanding result given the important role of SPH codes in astrophysics and cosmology, and the ubiquity of turbulent phenomena. |
| title | From particles to precision. Simulating subsonic turbulence with Smoothed Particle Hydrodynamics |
| topic | Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2503.10273 |