Influence of the vorticity-scalar correlation on mixing
Many factors influence the long-time behavior and mixing of a passive scalar field transported by a two-dimensional (2D) fluid flow. Our investigations based on statistical mechanics and numerical simulations suggest that the correlation of the scalar field with the flow's vorticity field is an important factor: strong correlation with the vorticity field is detrimental to mixing. This is linked to the inverse cascade in 2D turbulence and the persistence of large scale vortical structures.
Authors
- Xi–Yuan Yin (ORCID: https://orcid.org/0000-0003-0542-020X)
- Wesley Agoua
- Tong Wu (ORCID: https://orcid.org/0000-0001-6423-1017)
- Wouter J. T. Bos (ORCID: https://orcid.org/0000-0003-3510-0362)
Institutions
- Université Claude Bernard Lyon 1 (FR)
- École Centrale de Lyon (FR)
- University of Bayreuth (DE)
Publication Details
- Journal
- Physical Review Fluids
- Published
- 2024-10-18
- DOI
- https://doi.org/10.1103/physrevfluids.9.104502
- Citations
- 1
- Primary Topic
- Fluid Dynamics and Turbulent Flows
- Type
- article
- Field-Weighted Citation Impact
- 0.37
Funders
- Agence Nationale de la Recherche