Evaluation of Various Physical Description and Numerical Solvers in Two-dimensional Model Problem of Tracer Transport

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F16%3A00003900" target="_blank" >RIV/46747885:24620/16:00003900 - isvavai.cz</a>

Result on the web

<a href="http://www.esco2016.femhub.com/account/abstracts/pdf/122/" target="_blank" >http://www.esco2016.femhub.com/account/abstracts/pdf/122/</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Evaluation of Various Physical Description and Numerical Solvers in Two-dimensional Model Problem of Tracer Transport

Original language description

Poster at the conference. The motivation for this work is the movement of contaminant in fractured rock massif because of the possible placement of the nuclear waste repository in such an environment. The simulation area is located around the water treatment plant tunnel which is also being used as an underground laboratory. The aim of this paper is to compare the results of two different software codes with respect to measured data. We investigated the solute transport sensitivity in two-dimensional models on various physical descriptions, numerical schemes and computation methods, which are implemented in simulation codes DRUtES [Kuráž, 2010] and Flow123d [TUL, 2015]. DRUtES computer program is a finite element numerical solver in one and two dimensions. It solves underground water flow and contaminant transport in a dual porosity variably saturated porous media. Flow123d is a simulator of underground water flow, solute and heat transport in fractured porous media. It includes mixed-hybrid solver for steady and unsteady Darcy flow, finite volume model and discontinuous Galerkin model for solute transport of several substances. Parameters of hydraulic models were calibrated based on measured discharge from the seepage sites and then they were used in solute transport model. Its parameters were calibrated based on measured isotope concentrations. The use of an unsaturated zone confirmed its importance for shallow seepage sites and its minimal influence on discharges from deeper sites.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

BA - General mathematics

OECD FORD branch

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Project

<a href="/en/project/FR-TI3%2F579" target="_blank" >FR-TI3/579: Research of coupled processes in rock environment and development of methodologies for long-term stability assessments of underground facilities</a><br>

Continuities

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

Publication year

2016

Confidentiality

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