Multi-fidelity Techniques and Uncertainty Quantification for Mechanical and Transport Processes in Fractured Rock
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F24%3A00603686" target="_blank" >RIV/68145535:_____/24:00603686 - isvavai.cz</a>
Result on the web
<a href="https://www.ejp-eurad.eu/publications/eurad-d47-report-describing-numerical-improvement-and-developments-and-their" target="_blank" >https://www.ejp-eurad.eu/publications/eurad-d47-report-describing-numerical-improvement-and-developments-and-their</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Multi-fidelity Techniques and Uncertainty Quantification for Mechanical and Transport Processes in Fractured Rock
Original language description
The report summarizes the results achieved by teams from the Technical University of Liberec and the Institute of Geonics of the Czech Academy of Sciences, as part of Task 4 within the DONUTnworkpackage. We introduce a parallel Bayesian inversion library based on the delayed acceptance Metropolis-Hastings method for accelerated sampling using suitable surrogate models. Then we applynthe library to an inverse problem, specifically the identification of the parameters to the hydro-mechanical model describing formation of the excavation disturbed zone. Additionally, we introduce a multilevel Monte Carlo method (MLMC) library, which has been effectively applied to test transport problems. We present a neural network developed for fast numerical homogenization of small-scale discrete fractures in the 2D case. This represents a crucial advancement for applying MLMC to models with discrete fracture networks. Finally, we integrate developed methods into a benchmark safety study for near-field transport.
Czech name
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Czech description
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Classification
Type
V<sub>souhrn</sub> - Summary research report
CEP classification
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OECD FORD branch
20701 - Environmental and geological engineering, geotechnics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Number of pages
19
Place of publication
EU
Publisher/client name
EU
Version
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