液体和气体混合物中对流不稳定性的扩散机制

IF 2.3 4区 工程技术 Q1 MATHEMATICS, APPLIED
Vladimir Kossov, Holm Altenbach
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引用次数: 0

摘要

摘要综述了非等温和等温条件下多组分气体和液体混合物力学平衡稳定性的研究成果。分析了二元和多组分混合物中扩散导致系统力学平衡不稳定的研究。主要注意的是描述预测对流扰动增加的区域的方法,以及对流对传热和传质的贡献可以忽略不计的热物性参数谱的确定。同时,确定扩散、热扩散和双扩散机制在对流不稳定边界混合气组分分离中的作用的问题被优先考虑。文中还讨论了有关混合初期不稳定引起的流动演变的研究结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Diffusion mechanisms of convective instability in liquid and gas mixtures
Abstract A review of publications on stability of mechanical equilibrium of multicomponent mixtures in gases and liquids under non‐isothermal and isothermal conditions is given. Studies where diffusion in binary and multicomponent mixtures led to the occurrence of instability of mechanical equilibrium of the system have been analyzed. The main attention is paid to the description of approaches predicting the areas where there are increasing convective disturbances, as well as the determination of the spectrum of thermophysical parameters where the contribution of convection to heat and mass transfer is negligible. At the same time, the problems determining the role of diffusion, thermodiffusion, and double diffusion mechanisms in the separation of mixture components at the boundary of convective instability were given priority in the description. The results of investigations related to the study of the evolution of flows arising due to instability at the initial stage of mixing were also discussed.
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来源期刊
CiteScore
3.30
自引率
8.70%
发文量
199
审稿时长
3.0 months
期刊介绍: ZAMM is one of the oldest journals in the field of applied mathematics and mechanics and is read by scientists all over the world. The aim and scope of ZAMM is the publication of new results and review articles and information on applied mathematics (mainly numerical mathematics and various applications of analysis, in particular numerical aspects of differential and integral equations), on the entire field of theoretical and applied mechanics (solid mechanics, fluid mechanics, thermodynamics). ZAMM is also open to essential contributions on mathematics in industrial applications.
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