Diffusion Enhancement and Taylor Dispersion for Rotationally Symmetric Flows in Discs and Pipes

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-01-27 DOI:10.1007/s00021-023-00845-0

Michele Coti Zelati, Michele Dolce, Chia-Chun Lo

引用次数: 0

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.

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圆盘和管道中旋转对称流动的扩散增强和泰勒扩散

在本论文中，我们研究了由旋转对称流驱动的被动标量的长期动力学。我们专注于确定速度场的精确条件，以证明三维无限管道中的增强耗散和泰勒分散。作为分析的副产品，我们得到了任意半径圆盘上圆形流的增强衰减。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.