Temperature-driven turbulence in compressible fluid flows
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866908936033009664 |
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| author | Feireisl, Eduard Lukacova-Medvidova, Maria She, Bangwei Yuan, Yuhuan |
| author_facet | Feireisl, Eduard Lukacova-Medvidova, Maria She, Bangwei Yuan, Yuhuan |
| contents | We study the long-time behaviour of the temperature-driven compressible flows. We show that numerical solutions of a structure-preserving finite volume method generate a discrete attractor that consists of entire discrete trajectories. Further, we prove the convergence of discrete attractors to their continuous counterparts. Theoretical results are illustrated by extensive numerical simulations of the well-known Rayleigh-Benard problem. The numerical results also indicate the validity of the ergodic hypothesis and imply that a non-zero Reynolds stress persist for long time. Finally, we also observe that any invariant measure is of Gaussian type in sharp contrast with the conjecture proposed by [Glimm et al., SN Applied Sciences 2, 2160 (2020)]. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_28158 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Temperature-driven turbulence in compressible fluid flows Feireisl, Eduard Lukacova-Medvidova, Maria She, Bangwei Yuan, Yuhuan Numerical Analysis 76F35, 76F50, 76N06, 65M08, 35M12, 37M25, 37L40 We study the long-time behaviour of the temperature-driven compressible flows. We show that numerical solutions of a structure-preserving finite volume method generate a discrete attractor that consists of entire discrete trajectories. Further, we prove the convergence of discrete attractors to their continuous counterparts. Theoretical results are illustrated by extensive numerical simulations of the well-known Rayleigh-Benard problem. The numerical results also indicate the validity of the ergodic hypothesis and imply that a non-zero Reynolds stress persist for long time. Finally, we also observe that any invariant measure is of Gaussian type in sharp contrast with the conjecture proposed by [Glimm et al., SN Applied Sciences 2, 2160 (2020)]. |
| title | Temperature-driven turbulence in compressible fluid flows |
| topic | Numerical Analysis 76F35, 76F50, 76N06, 65M08, 35M12, 37M25, 37L40 |
| url | https://arxiv.org/abs/2603.28158 |