Computer Simulation of the Ternary Problem – Technical Aspects and Possibilities

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F18%3A00005502" target="_blank" >RIV/46747885:24220/18:00005502 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.ifacol.2018.03.099" target="_blank" >https://doi.org/10.1016/j.ifacol.2018.03.099</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ifacol.2018.03.099" target="_blank" >10.1016/j.ifacol.2018.03.099</a>

Result language

angličtina

Original language name

Computer Simulation of the Ternary Problem – Technical Aspects and Possibilities

Original language description

Interaction between groundwater contaminants (e.g. radioactive elements), soil and humic matter plays a crucial role in transport prognoses. This type of interaction, denoted as the ternary problem, may speed up propagation of a contaminant in comparison with the case in the absence of humic compounds. It is very difficult (almost impossible) to find a simple description of the ternary problem in the form of chemical equations. This difficulty is caused by the complex nature of humic substances. Rather than with particular chemical equations, the ternary problem is commonly described by schematic expressions which consider groups of species. The usual approach for the problem formulation is grouping of species resulting in a system of differential and algebraic equations (DAE). This article introduces a different approach allowing a semi-automatic formulation of a system of ordinary differential equations (ODE) for the same problem. The proposed method enables to avoid an operator-splitting already during the model formulation process. The approach for the model formulation and its solution has been implemented using two different open-source software packages. The results have been compared with reference results of a traditional solution approach using DAE systems. The implementation in Python verified the possibility of automation of the formulation and solution. A sensitivity analysis has been performed to evaluate the behaviour of the system with respect to parameter variation.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

10102 - Applied mathematics

Project

<a href="/en/project/TH02030069" target="_blank" >TH02030069: Expert system for monitoring, risk assessment and decision support in the field of land use</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

IFAC-PapersOnLine

ISSN

24058963

e-ISSN

—

Volume of the periodical

51

Issue of the periodical within the volume

2

Country of publishing house

AT - AUSTRIA

Number of pages

6

Pages from-to

589-594

UT code for WoS article

—

EID of the result in the Scopus database

2-s2.0-85046634079