Van der Waals cascade in supercritical turbulence near a critical point
We investigate a quite strong turbulence in a supercritical fluid near a gas-liquid critical point. Specifically, we consider a case in which the Kolmogorov scale is much smaller than the equilibrium correlation length ξ. Although equilibrium critical fluctuations are destroyed by turbulence, ξ stil...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2021-07-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.3.L032027 |
| _version_ | 1797210975851511808 |
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| author | Tomohiro Tanogami Shin-ichi Sasa |
| author_facet | Tomohiro Tanogami Shin-ichi Sasa |
| author_sort | Tomohiro Tanogami |
| collection | DOAJ |
| description | We investigate a quite strong turbulence in a supercritical fluid near a gas-liquid critical point. Specifically, we consider a case in which the Kolmogorov scale is much smaller than the equilibrium correlation length ξ. Although equilibrium critical fluctuations are destroyed by turbulence, ξ still provides a crossover length scale between two types of energy cascade. At scales much larger than ξ, the Richardson cascade becomes dominant, whereas at scales much smaller than ξ, another type of cascade, which we call the van der Waals cascade, is induced by density fluctuations. Experimental conditions required to observe the van der Waals cascade are also discussed. |
| first_indexed | 2024-04-24T10:19:08Z |
| format | Article |
| id | doaj.art-1af0b14e64604395ac4f26e3dc16c845 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:19:08Z |
| publishDate | 2021-07-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-1af0b14e64604395ac4f26e3dc16c8452024-04-12T17:12:26ZengAmerican Physical SocietyPhysical Review Research2643-15642021-07-0133L03202710.1103/PhysRevResearch.3.L032027Van der Waals cascade in supercritical turbulence near a critical pointTomohiro TanogamiShin-ichi SasaWe investigate a quite strong turbulence in a supercritical fluid near a gas-liquid critical point. Specifically, we consider a case in which the Kolmogorov scale is much smaller than the equilibrium correlation length ξ. Although equilibrium critical fluctuations are destroyed by turbulence, ξ still provides a crossover length scale between two types of energy cascade. At scales much larger than ξ, the Richardson cascade becomes dominant, whereas at scales much smaller than ξ, another type of cascade, which we call the van der Waals cascade, is induced by density fluctuations. Experimental conditions required to observe the van der Waals cascade are also discussed.http://doi.org/10.1103/PhysRevResearch.3.L032027 |
| spellingShingle | Tomohiro Tanogami Shin-ichi Sasa Van der Waals cascade in supercritical turbulence near a critical point Physical Review Research |
| title | Van der Waals cascade in supercritical turbulence near a critical point |
| title_full | Van der Waals cascade in supercritical turbulence near a critical point |
| title_fullStr | Van der Waals cascade in supercritical turbulence near a critical point |
| title_full_unstemmed | Van der Waals cascade in supercritical turbulence near a critical point |
| title_short | Van der Waals cascade in supercritical turbulence near a critical point |
| title_sort | van der waals cascade in supercritical turbulence near a critical point |
| url | http://doi.org/10.1103/PhysRevResearch.3.L032027 |
| work_keys_str_mv | AT tomohirotanogami vanderwaalscascadeinsupercriticalturbulencenearacriticalpoint AT shinichisasa vanderwaalscascadeinsupercriticalturbulencenearacriticalpoint |