气体在大孔介质中非等压多组分扩散动力学的现象学和数值问题

IF 0.5 4区工程技术 Q4 ENGINEERING, CHEMICAL

Chemical and Process Engineering-Inzynieria Chemiczna I Procesowa Pub Date : 2023-11-06 DOI:10.24425/cpe.2021.138927

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引用次数: 1

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Phenomenological and numerical issues concerning dynamics of nonisobaric multicomponent diffusion of gases in macroporous media

The study addresses two groups of issues occurring in modeling and experimental studies of multicomponent nonisobaric diﬀusion in macroporous materials. The dynamics of such processes is described in terms of systems of nonlinear partial diﬀerential equations. A method of orthogonal collocation for resolving the equations is proposed and compared with the method of lines. The second group of problems presented involves numerical simulations of diﬀusion in a Wicke–Kallenbach diﬀusion cell. Such an apparatus is used in experimental studies. Particular attention is paid to diﬀusion in a cell closed from both sides. This is an analogue of the Duncan–Toor experiment. The eﬀect of the number of diﬀusing components and their initial concentrations on the dynamics of diﬀusion in binary and ternary solution was studied. Hitherto unknown dynamic properties of such processes were detected and discussed.

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来源期刊

Chemical and Process Engineering-Inzynieria Chemiczna I Procesowa 工程技术-工程：化工

CiteScore

1.30

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The content, aim and scope of the proposals should comply with the main subject of the journal, i.e. they should deal with mathematical modelling and/or experimental investigations on momentum, heat and mass transfer, unit processes and operations, integrated processes, biochemical engineering, statics and kinetics of chemical reactions. The experiments and modelling may cover different scales and processes ranging from the molecular phenomena up to production systems. The journal language is grammatically correct British English. Chemical and Process Engineering publishes: i) full text research articles, ii) invited reviews, iii) letters to the editor and iv) short communications, aiming at important new results and/or applications. Each of the publication form is peer-reviewed by at least two independent referees.