Using reduced basis approximation for efficient surrogate-based inverse identification of thermo-hydro-mechanical parameters from an in situ heating test
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Cita com:
hdl:2117/375066
Tipus de documentArticle
Data publicació2022-06-27
EditorSpringer Nature
Condicions d'accésAccés obert
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ProjecteMATHROCKS - Multiscale Inversion of Porous Rock Physics using High-Performance Simulators: Bridging the Gap between Mathematics and Geophysics (EC-H2020-777778)
ASIMILACION DE DATOS PARA UNA SIMULACION INGENIERIL CREIBLE (AEI-DPI2017-85139-C2-2-R)
ASIMILACION DE DATOS PARA UNA SIMULACION INGENIERIL CREIBLE (AEI-DPI2017-85139-C2-2-R)
Abstract
In this paper, a reduced-order model built from the reduced basis (RB) method is used as a surrogate for an inverse identification problem related to coupled thermo-hydro-mechanical (THM) processes. The RB space—spanned by solutions of the governing THM equations—is constructed using a greedy adaptive procedure guided by an a posteriori error estimator that selects the optimal snapshot points in a given parametric space. The RB model is assessed in terms of accuracy and computational cost reduction for the three-dimensional transient coupled problem described by the ATLAS III small-scale in situ heating test. The substantial system size reduction and the associated significant computational gain result in a surrogate model suitable for parameter identification procedures in the Boom Clay material. The effectiveness of the proposed strategy is demonstrated by performing inverse analysis based on direct-search and genetic algorithm (GA) optimization supported by real sensor measurement data where 800 times faster computational speed-up was achieved.
Descripció
The version of record is available online at: http://dx.doi.org/10.1007/s00603-022-02925-5
CitacióLarion, Y. [et al.]. Using reduced basis approximation for efficient surrogate-based inverse identification of thermo-hydro-mechanical parameters from an in situ heating test. "Rock mechanics and rock engineering", 27 Juny 2022, vol. 55, núm. 9, p. 5739-5757.
ISSN1434-453X
Versió de l'editorhttps://link.springer.com/article/10.1007/s00603-022-02925-5
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