scholarly journals Geochemical reaction models quantify the composition of transition zones between brine occurrence and unaffected salt rock

2020 ◽  
Vol 532 ◽  
pp. 119349 ◽  
Author(s):  
Svenja Steding ◽  
Axel Zirkler ◽  
Michael Kühn
Wetlands ◽  
2019 ◽  
Vol 40 (2) ◽  
pp. 235-247
Author(s):  
Vendula Polášková ◽  
Jana Schenková ◽  
Martina Bílková ◽  
Martina Poláková ◽  
Vanda Šorfová ◽  
...  

2021 ◽  
Vol 411 ◽  
pp. 125128
Author(s):  
Harald Neidhardt ◽  
Sebastian Rudischer ◽  
Elisabeth Eiche ◽  
Magnus Schneider ◽  
Emiliano Stopelli ◽  
...  

2021 ◽  
Vol 5 (3) ◽  
pp. 36
Author(s):  
Leilei Dong ◽  
Italo Mazzarino ◽  
Alessio Alexiadis

A comprehensive review is carried out on the models and correlations for solid/fluid reactions that result from a complex multi-scale physicochemical process. A simulation of this process with CFD requires various complicated submodels and significant computational time, which often makes it undesirable and impractical in many industrial activities requiring a quick solution within a limited time frame, such as new product/process design, feasibility studies, and the evaluation or optimization of the existing processes, etc. In these circumstances, the existing models and correlations developed in the last few decades are of significant relevance and become a useful simulation tool. However, despite the increasing research interests in this area in the last thirty years, there is no comprehensive review available. This paper is thus motivated to review the models developed so far, as well as provide the selection guidance for model and correlations for the specific application to help engineers and researchers choose the most appropriate model for feasible solutions. Therefore, this review is also of practical relevance to professionals who need to perform engineering design or simulation work. The areas needing further development in solid–fluid reaction modelling are also identified and discussed.


2020 ◽  
Vol 4 (12) ◽  
pp. 2337-2346
Author(s):  
Han Hua ◽  
Xin Yin ◽  
James A. Dyer ◽  
Richard Landis ◽  
Lisa Axe

Algorithms ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 113
Author(s):  
Stephan Daniel Schwoebel ◽  
Thomas Mehner ◽  
Thomas Lampke

Three-component systems of diffusion–reaction equations play a central role in the modelling and simulation of chemical processes in engineering, electro-chemistry, physical chemistry, biology, population dynamics, etc. A major question in the simulation of three-component systems is how to guarantee non-negative species distributions in the model and how to calculate them effectively. Current numerical methods to enforce non-negative species distributions tend to be cost-intensive in terms of computation time and they are not robust for big rate constants of the considered reaction. In this article, a method, as a combination of homotopy methods, modern augmented Lagrangian methods, and adaptive FEMs is outlined to obtain a robust and efficient method to simulate diffusion–reaction models with non-negative concentrations. Although in this paper the convergence analysis is not described rigorously, multiple numerical examples as well as an application to elctro-deposition from an aqueous Cu2+-(β-alanine) electrolyte are presented.


Author(s):  
Abay Molla Kassa ◽  
Sarah E. Gasda ◽  
Kundan Kumar ◽  
Florin A. Radu

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