Data-driven correction reduced order models for the quasi-geostrophic equations: a numerical investigation
Data-driven correction reduced order models for the quasi-geostrophic equations: a numerical investigation
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准地转方程的数据驱动校正降阶模型:数值研究
DOI:
10.1080/10618562.2020.1723556
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发表时间:
2020
影响因子:
1.3
通讯作者:
Iliescu, Traian
中科院分区:
文献类型:
--
作者:
Mou, Changhong;Liu, Honghu;Wells, David R.;Iliescu, Traian
This paper investigates the recently introduced data-driven correction reduced order model (DDC-ROM) in the numerical simulation of the quasi-geostrophic equations. The DDC-ROM uses available data to model the correction term that is generally used to represent the missing information in low-dimensional ROMs. Physical constraints are added to the DDC-ROM to create the constrained data-driven correction reduced order model (CDDC-ROM) in order to further improve its accuracy and stability. Finally, the DDC-ROM and CDDC-ROM are tested on time intervals that are longer than the time interval over which they were trained. The numerical investigation shows that, for low-dimensional ROMs, both the DDC-ROM and CDDC-ROM perform better than the standard Galerkin ROM (G-ROM) and the CDDC-ROM provides the best results.
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影响因子:
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通讯作者:
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通讯作者:
Iliescu, Traian