Compressible helical turbulence: Fastened-structure geometry and statistics
Fuente:
arXiv
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| Autore principale: | |
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| Natura: | Preprint |
| Pubblicazione: |
2019
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| _version_ | 1866916290936963072 |
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| author | Zhu, Jian-Zhou |
| author_facet | Zhu, Jian-Zhou |
| contents | Reduction of flow compressibility with the corresponding ideally invariant helicities, universally for various fluid models of neutral and ionized gases, can be argued statistically and associated with the geometrical scenario in the Taylor-Proudman theorem and its analogues. A `chiral base flow/field', rooted in the generic intrinsic local structure, as well as an `equivalence principle' is explained and used to bridge the single-structure mechanics and the helical statistics. The electric field fluctuations may similarly be depressed by the (self-)helicities of the two-fluid plasma model, with the geometry lying in the relation between the electric and density fields in a Maxwell equation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1910_04638 |
| institution | arXiv |
| publishDate | 2019 |
| record_format | arxiv |
| spellingShingle | Compressible helical turbulence: Fastened-structure geometry and statistics Zhu, Jian-Zhou Fluid Dynamics Solar and Stellar Astrophysics Quantum Gases Plasma Physics Reduction of flow compressibility with the corresponding ideally invariant helicities, universally for various fluid models of neutral and ionized gases, can be argued statistically and associated with the geometrical scenario in the Taylor-Proudman theorem and its analogues. A `chiral base flow/field', rooted in the generic intrinsic local structure, as well as an `equivalence principle' is explained and used to bridge the single-structure mechanics and the helical statistics. The electric field fluctuations may similarly be depressed by the (self-)helicities of the two-fluid plasma model, with the geometry lying in the relation between the electric and density fields in a Maxwell equation. |
| title | Compressible helical turbulence: Fastened-structure geometry and statistics |
| topic | Fluid Dynamics Solar and Stellar Astrophysics Quantum Gases Plasma Physics |
| url | https://arxiv.org/abs/1910.04638 |