Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Argaud, Jean‐Philippe"'
Autor:
Agouzal, Eki, Argaud, Jean-Philippe, Bergmann, Michel, Ferté, Guilhem, Michel-Ponnelle, Sylvie, Taddei, Tommaso
We propose a projection-based model order reduction procedure for the ageing of large prestressed concrete structures. Our work is motivated by applications in the nuclear industry, particularly in the simulation of containment buildings. Such numeri
Externí odkaz:
http://arxiv.org/abs/2401.05098
The Linear Model of Co-regionalization (LMC) is a very general model of multitask gaussian process for regression or classification. While its expressivity and conceptual simplicity are appealing, naive implementations have cubic complexity in the nu
Externí odkaz:
http://arxiv.org/abs/2310.12032
We propose a projection-based model order reduction procedure for a general class of parametric quasi-static problems in nonlinear mechanics with internal variables. The methodology is integrated in the industrial finite element code code aster. Mode
Externí odkaz:
http://arxiv.org/abs/2212.14825
Accurate estimation of error covariances (both background and observation) is crucial for efficient observation compression approaches in data assimilation of large-scale dynamical problems. We propose a new combination of a covariance tuning algorit
Externí odkaz:
http://arxiv.org/abs/2106.05427
An original graph clustering approach to efficient localization of error covariances is proposed within an ensemble-variational data assimilation framework. Here the localization term is very generic and refers to the idea of breaking up a global ass
Externí odkaz:
http://arxiv.org/abs/2001.11860
In order to leverage the information embedded in the background state and observations, covariance matrices modelling is a pivotal point in data assimilation algorithms. These matrices are often estimated from an ensemble of observations or forecast
Externí odkaz:
http://arxiv.org/abs/1910.09408
Autor:
Truffinet, Olivier, Ammar, Karim, Gérard Castaing, Nicolas, Argaud, Jean-Philippe, Bouriquet, Bertrand
Publikováno v:
In Annals of Nuclear Energy 1 June 2023 185
Autor:
Truffinet Olivier, Ammar Karim, Argaud Jean-Philippe, Gérard Castaing Nicolas, Bouriquet Bertrand
Publikováno v:
EPJ Web of Conferences, Vol 302, p 02006 (2024)
Deterministic nuclear reactor simulators employing the prevalent two-step scheme often generate a substantial amount of intermediate data at the interface of their two subcodes, which can impede the overall performance of the software. The bulk of th
Externí odkaz:
https://doaj.org/article/70d4440c617242d8a0039a4f64e5f961
Autor:
Truffinet Olivier, Ammar Karim, Argaud Jean-Philippe, Gérard Castaing Nicolas, Bouriquet Bertrand
Publikováno v:
EPJ Web of Conferences, Vol 302, p 02010 (2024)
In another talk submitted to this conference, we presented an efficient new framework based on multi-outputs gaussian processes (MOGP) for the interpolation of few-groups homogenized cross-sections (HXS) inside deterministic core simulators. We indic
Externí odkaz:
https://doaj.org/article/df793ee9cfb34452940718587ef4a923
Autor:
Clerc, Thomas, Hébert, Alain, Leroyer, Hadrien, Argaud, Jean-Philippe, Bouriquet, Bertrand, Ponçot, Agélique
This paper presents a computational scheme for the determination of equivalent 2D multi-group heterogeneous reflectors in a Pressurized Water Reactor (PWR). The proposed strategy is to define a full-core calculation consistent with a reference lattic
Externí odkaz:
http://arxiv.org/abs/1405.2659