Vytvoření transportního modelu látek pomocí softwaru Goldsim
Title Alternative:Creating a transport model of substances using software GoldSim
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Date
2012
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Technická Univerzita v Liberci
Abstract
Tato diplomová práce se zabývá softwarovými prostředky pro modelování hlubinných úložišť radioaktivních odpadů. Je zde popsán program GoldSim, který je pro tvorbu modelů tohoto typů vhodný. Podrobněji je také popsán speciální modul GoldSimu pro tuto oblast, který má název Radionuclide Transport Module. V další části práce jsou popsány modely využívající jednotlivé elementy programu GoldSim. Obecně se jedná o elementy modelující zdroje kontaminace, několik typů elementů sloužících jako transportní cesty pro kontaminant a elementy modelující dopady na příjemce. Hlavní částí práce je tvorba modelu, vycházejícího z popisu horninového okolí hypotetického hlubinného úložiště jaderného odpadu v oblasti Melechovského masivu. Zde je popsán výběr elementů z 3D modelu, které budou modelovány v GoldSimu a zjištění toků podzemních vod mezi nimi. Dále je zde popsána úprava modelu pro větší přehlednost, kdy byly elementy rozděleny do kontejnerů podle jejich vzdálenosti od zdrojového elementu. Výstupy z modelu, tedy hlavně koncentrace a hmotnosti sledované látky na elementech, jsou popsány v kapitole 5.4. Je vidět, že model se chová podle očekávání, sledovaná látka se transportuje přes elementy směrem od zdroje. Problematickou částí však bylo propojení vstupních dat z programu Flow123D do programu GoldSim. Hlavní problém spočíval v nastavení geometrických vlastností elementů v GoldSimu. Z tohoto důvodu je porovnání výstupů z obou softwarů poměrně obtížné a hodnoty koncentrací na elementech se dosti liší.
This thesis deals with the software tools which are used for modeling deep nuclear waste repositories. The thesis describes the program GoldSim, which is convenient for creating models of this type. The attention is paid to the description of a special module of GoldSim which is called Radionuclide Transport Module and is used for this area. The next section of the thesis focuses on the models using the GoldSim elements. Generally, these are the elements which model the source of contamination, several types of elements which serve as transport routes for contaminant and the elements which model the impact on a receiver. The main part of this thesis focuses on creating a model which is based on a description of a rock surrounding of a hypothetical underground nuclear waste repository in the Melechov massif. It deals with a selection of elements from the 3D model, which is modeled in GoldSim, and detection of groundwater flowing between them. Next part of the thesis describes the adaptation of the model for its greater clarity. The elements were divided into containers on the basis of their distance from the source element. The outputs from the model, i.e. mainly the concentration and weight of substance of concern on the elements, are described in chapter 5.4. It is possible be observed that the model behaves as expected, the substance of concern transports through the elements away from the source. However, the issue was to connect the input data from the program Flow123D to GoldSim. The main problem lay in setting the properties of geometric elements in GoldSimu. For this reason, comparing the outputs of both softwares is quite difficult and the concentration values for elements are quite different.
This thesis deals with the software tools which are used for modeling deep nuclear waste repositories. The thesis describes the program GoldSim, which is convenient for creating models of this type. The attention is paid to the description of a special module of GoldSim which is called Radionuclide Transport Module and is used for this area. The next section of the thesis focuses on the models using the GoldSim elements. Generally, these are the elements which model the source of contamination, several types of elements which serve as transport routes for contaminant and the elements which model the impact on a receiver. The main part of this thesis focuses on creating a model which is based on a description of a rock surrounding of a hypothetical underground nuclear waste repository in the Melechov massif. It deals with a selection of elements from the 3D model, which is modeled in GoldSim, and detection of groundwater flowing between them. Next part of the thesis describes the adaptation of the model for its greater clarity. The elements were divided into containers on the basis of their distance from the source element. The outputs from the model, i.e. mainly the concentration and weight of substance of concern on the elements, are described in chapter 5.4. It is possible be observed that the model behaves as expected, the substance of concern transports through the elements away from the source. However, the issue was to connect the input data from the program Flow123D to GoldSim. The main problem lay in setting the properties of geometric elements in GoldSimu. For this reason, comparing the outputs of both softwares is quite difficult and the concentration values for elements are quite different.
Description
katedra: NTI; přílohy: 1 CD; rozsah: 76 s. (96 000 znaků).
Subject(s)
goldsim, radionuclide transport module, flow123d, hlubinné úložiště radioaktivního odpadu, goldsim, radionuclide transport module, flow123d, deep geological waste repository