Numerical investigations of diffusion coefficients in the context of multi‐component gas transport within the Theory of Porous Media

Numerical investigations of diffusion coefficients in the context of multi‐component gas transport within the Theory of Porous Media
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多孔介质理论中多组分气体传输背景下扩散系数的数值研究

DOI:
10.1002/pamm.201800446
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发表时间:
--
期刊:
PAMM
影响因子:
--
通讯作者:
Schmidt
Schmidt
中科院分区:
--
文献类型:
--
作者:
Ricken;Kossler M;Gehrke;Denecke;Widmann;Schulte;Schmidt

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为了模拟在变化的环境条件下垃圾填埋场内的甲烷氧化,通过扩展的多孔介质理论(eTPM)创建了一种计算方法。其目的是全面了解正在进行的过程,如甲烷、氧气、二氧化碳和氮的浓度变化。为此,考虑了平流和扩散输运机制以及放热氧化反应的能量产生。对于扩散气体输运,采用了不同的方法来模拟扩散系数。
In order to simulate methane oxidation within landfill covers in changing environmental conditions, a computational approach via the extended Theory of Porous Media (eTPM) was created. Its purpose is to gain an overall view on the ongoing processes such as concentration progression of methane, oxygen, carbon dioxide and nitrogen. For that, advective and diffusive transport mechanisms as well as energy production from the exothermic oxidation reaction are considered. Regarding the diffusive gas transport different approaches to model the diffusion coefficient are made use of.
多相多孔介质中浓度驱动的相变及其在垃圾填埋场覆盖层中甲烷氧化的应用
DOI: 10.1002/zamm.201200198
发表时间: 2014
期刊: ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik
影响因子: --
作者:
Ricken;Sindern;Widmann;Denecke;Gehrke;Schmidt
通讯作者: Schmidt