A Domain Decomposition Reduced Order Model with Data Assimilation (DD-RODA)

被引：0

作者：

Arcucci, Rossella ^{[1
]}

Casas, Cesar Quilodran ^{[1
]}

Xiao, Dunhui ^{[1
,2
,3
]}

Mottet, Laetitia ^{[3
]}

Fang, Fangxin ^{[1
,3
]}

Wu, Pin ^{[4
]}

Pain, Christopher ^{[1
,3
]}

Guo, Yi-Ke ^{[1
]}

机构：

[1] Imperial Coll London, Dept Comp, Data Sci Inst, London, England

[2] Swansea Univ, Coll Engn, ZCCE, Swansea, W Glam, Wales

[3] Imperial Coll London, Dept Earth Sci & Engn, London, England

[4] Shanghai Univ, Sch Comp Sci & Engn, Shanghai, Peoples R China

来源：

PARALLEL COMPUTING: TECHNOLOGY TRENDS | 2020年 / 36卷

基金：

英国工程与自然科学研究理事会;

关键词：

Numerical simulations; Reduced Order Models; Data Assimilation; Domain Decomposition; FLOWS;

D O I：

10.3233/APC200040

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

We present a Domain Decomposition Reduced Order Data Assimilation (DD-RODA) model which combines Non-Intrusive Reduced Order Modelling (NIROM) method with a Data Assimilation (DA) model. The NIROM is defined on a partition of the domain in sub-domains with overlapping regions and the DA is defined on a partition of the domain in sub-domains without overlapping regions. This choice allows to avoid communications among the processes during the Data Assimilation phase. However, during the balance phase, the model exploits the domain decomposition implemented in DD-NIROM which balances the results among the processes exploiting overlapping regions. The model is applied to the pollutant dispersion within an urban environment. Simulations are performed using the open-source, finite-element, fluid dynamics model Fluidity.

引用

页码：189 / 198

页数：10

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