Non-intrusive reduced-order models for parametric partial differential equations via data-driven operator inference
Non-intrusive reduced-order models for parametric partial differential equations via data-driven operator inference
复制标题
通过数据驱动算子推理的参数偏微分方程的非侵入式降阶模型
DOI:
--
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发表时间:
2021
影响因子:
3.1
通讯作者:
K. Willcox
中科院分区:
文献类型:
--
作者:
Shane A. McQuarrie;Parisa Khodabakhshi;K. Willcox
This work formulates a new approach to reduced modeling of parameterized, time-dependent partial differential equations (PDEs). The method employs Operator Inference, a scientific machine learning framework combining data-driven learning and physics-based modeling. The parametric structure of the governing equations is embedded directly into the reduced-order model, and parameterized reduced-order operators are learned via a data-driven linear regression problem. The result is a reduced-order model that can be solved rapidly to map parameter values to approximate PDE solutions. Such parameterized reduced-order models may be used as physics-based surrogates for uncertainty quantification and inverse problems that require many forward solves of parametric PDEs. Numerical issues such as well-posedness and the need for appropriate regularization in the learning problem are considered, and an algorithm for hyperparameter selection is presented. The method is illustrated for a parametric heat equation and demonstrated for the FitzHugh-Nagumo neuron model.
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影响因子:
3.1
作者:
Antoulas, A. C.;Gosea, I. V.;Ionita, A. C.
通讯作者:
Ionita, A. C.
DOI:
10.1016/j.cma.2020.113433
发表时间:
2020-12-01
影响因子:
7.2
作者:
Benner, Peter;Goyal, Pawan;Willcox, Karen
通讯作者:
Willcox, Karen
DOI:
10.2514/6.2021-3633
发表时间:
2021
期刊:
AIAA Propulsion and Energy 2021 Forum
影响因子:
--
作者:
Jain, Parikshit;McQuarrie, Shane;Kramer, Boris
通讯作者:
Kramer, Boris
影响因子:
3.6
作者:
Ongie, Greg;Pimentel-Alarcón, Daniel;Balzano, Laura;Willett, Rebecca;Nowak, Robert D.
通讯作者:
Nowak, Robert D.
DOI:
10.1051/m2an/2021010
发表时间:
2021
期刊:
ESAIM: Mathematical Modelling and Numerical Analysis
影响因子:
--
作者:
Uy, Wayne Isaac;Peherstorfer, Benjamin
通讯作者:
Peherstorfer, Benjamin