反应雷利-泰勒湍流：混合对混合区增长和位移的影响

IF 2.5 3区物理与天体物理 Q2 PHYSICS, FLUIDS & PLASMAS

Physical Review Fluids Pub Date : 2024-07-25 DOI:10.1103/physrevfluids.9.074609

Kevin Ley, Olivier Soulard, Jérôme Griffond, Antoine Briard, Serge Simoëns

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引用次数: 0

摘要

本文旨在研究分子混合对反应雷利-泰勒湍流混合区演变的影响。在这方面，我们推导出代数关系，表明混合程度的增加会导致混合区宽度的增长放缓。我们还证明了混合区中心最大位移速度的存在。我们利用直接数值模拟和大涡流模拟对这些预测进行了评估。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Reactive Rayleigh-Taylor turbulence: Influence of mixing on the growth and displacement of the mixing zone

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Reactive Rayleigh-Taylor turbulence: Influence of mixing on the growth and displacement of the mixing zone

The purpose of this paper is to investigate the effects of molecular mixing on the evolution of a reactive Rayleigh-Taylor turbulent mixing zone. In this regard, we derive algebraic relations showing that an increase in the mixing level leads to a slowing of the growth of the mixing zone width. We also show the existence of a maximum displacement velocity of the mixing zone center. These predictions are assessed using both direct numerical simulations and large eddy simulations.

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来源期刊

Physical Review Fluids Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

5.10

自引率

11.10%

发文量

488

期刊介绍： Physical Review Fluids is APS’s newest online-only journal dedicated to publishing innovative research that will significantly advance the fundamental understanding of fluid dynamics. Physical Review Fluids expands the scope of the APS journals to include additional areas of fluid dynamics research, complements the existing Physical Review collection, and maintains the same quality and reputation that authors and subscribers expect from APS. The journal is published with the endorsement of the APS Division of Fluid Dynamics.