The Uranie platform: an open-source software for optimisation, meta-modelling and uncertainty analysis

被引:29
作者
Blanchard, Jean-Baptiste [1 ]
Damblin, Guillaume [1 ]
Martinez, Jean-Marc [1 ]
Arnaud, Gilles [1 ]
Gaudier, Fabrice [1 ]
机构
[1] Univ Paris Saclay, CEA, Den Serv Thermohydraul & Mecan Fluides STMF, F-91191 Gif Sur Yvette, France
关键词
GLOBAL SENSITIVITY-ANALYSIS; SMALL FAILURE PROBABILITIES; IMPLEMENTATION; CALIBRATION; PREDICTION; INDEXES; DESIGNS; MODELS;
D O I
10.1051/epjn/2018050
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
The high-performance computing resources and the constant improvement of both numerical simulation accuracy and the experimental measurements with which they are confronted bring a new compulsory step to strengthen the credence given to the simulation results: uncertainty quantification. This can have different meanings, according to the requested goals (rank uncertainty sources, reduce them, estimate precisely a critical threshold or an optimal working point), and it could request mathematical methods with greater or lesser complexity. This paper introduces the Uranie platform, an open-source framework developed at the Alternative Energies and Atomic Energy Commission (CEA), in the nuclear energy division, in order to deal with uncertainty propagation, surrogate models, optimisation issues, code calibration, etc. This platform benefits from both its dependencies and from personal developments, to offer an efficient data handling model, a C++ and Python interface, advanced graphi graphical tools, several parallelisation solutions, etc. These methods can then be applied to many kinds of code (considered as black boxes by Uranie) so to many fields of physics as well. In this paper, the example of thermal exchange between a plate-sheet and a fluid is introduced to show how Uranie can be used to perform a large range of analysis.
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页数:32
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