Diffusion enhancement and Taylor dispersion for rotationally symmetric flows in discs and pipes
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Published version
Author(s)
Zelati, Michele Coti
Dolce, Michele
Lo, Chia-Chun
Type
Journal Article
Abstract
In this note, we study the long-time dynamics of passive scalars driven by rotationally symmetric flows. We focus on identifying precise conditions on the velocity field in order to prove enhanced dissipation and Taylor dispersion in three-dimensional infinite pipes. As a byproduct of our analysis, we obtain an enhanced decay for circular flows on a disc of arbitrary radius.
Date Issued
2024-02
Date Acceptance
2023-12-10
Citation
Journal of Mathematical Fluid Mechanics, 2024, 26 (1)
ISSN
1422-6952
Publisher
Springer
Journal / Book Title
Journal of Mathematical Fluid Mechanics
Volume
26
Issue
1
Copyright Statement
© 2024 The Author(s) Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
License URL
Identifier
https://link.springer.com/article/10.1007/s00021-023-00845-0
Subjects
Enhanced diffusion
Mathematics
Mathematics, Applied
Mechanics
Physical Sciences
Physics
Physics, Fluids & Plasmas
Pipe flows
Radial flows
Science & Technology
Taylor dispersion
Technology
Publication Status
Published
Article Number
12
Date Publish Online
2024-01-27