Projection-tree reduced-order modeling for fast N-body computations

Steven N. Rodriguez,Athanasios P. Iliopoulos,Kevin T. Carlberg,Steven L. Brunton,John C. Steuben,John G. Michopoulos

Journal of Computational Physics（2022）

引用 3|浏览13

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摘要

•A new class of reduced order models is presented: projection-tree reduced-order modeling (PTROM).•The method combines tree-algorithms, dimensionality compression, and hyper-reduction.•The PTROM is tested on the N-body fluid-dynamics Biot-Savart law.•Numerical experiments show the PTROM out-performs classical acceleration techniques.

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关键词

Reduced-order modeling,LSPG,GNAT,Tree algorithms,Barnes–Hut,Hyper-reduction

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