Operator inference for non-intrusive model reduction with quadratic manifolds

R Geelen, S Wright, K Willcox - Computer Methods in Applied Mechanics …, 2023 - Elsevier
This paper proposes a novel approach for learning a data-driven quadratic manifold from
high-dimensional data, then employing this quadratic manifold to derive efficient physics …

Model reduction of dynamical systems on nonlinear manifolds using deep convolutional autoencoders

K Lee, KT Carlberg - Journal of Computational Physics, 2020 - Elsevier
Nearly all model-reduction techniques project the governing equations onto a linear
subspace of the original state space. Such subspaces are typically computed using methods …

A comprehensive deep learning-based approach to reduced order modeling of nonlinear time-dependent parametrized PDEs

S Fresca, L Dede', A Manzoni - Journal of Scientific Computing, 2021 - Springer
Conventional reduced order modeling techniques such as the reduced basis (RB) method
(relying, eg, on proper orthogonal decomposition (POD)) may incur in severe limitations …

Reduced basis methods for time-dependent problems

JS Hesthaven, C Pagliantini, G Rozza - Acta Numerica, 2022 - cambridge.org
Numerical simulation of parametrized differential equations is of crucial importance in the
study of real-world phenomena in applied science and engineering. Computational methods …

Reduced basis methods: Success, limitations and future challenges

M Ohlberger, S Rave - arXiv preprint arXiv:1511.02021, 2015 - arxiv.org
Parametric model order reduction using reduced basis methods can be an effective tool for
obtaining quickly solvable reduced order models of parametrized partial differential equation …

Model reduction for transport-dominated problems via online adaptive bases and adaptive sampling

B Peherstorfer - SIAM Journal on Scientific Computing, 2020 - SIAM
This work presents a model reduction approach for problems with coherent structures that
propagate over time, such as convection-dominated flows and wave-type phenomena …

The shifted proper orthogonal decomposition: A mode decomposition for multiple transport phenomena

J Reiss, P Schulze, J Sesterhenn, V Mehrmann - SIAM Journal on Scientific …, 2018 - SIAM
Transport-dominated phenomena provide a challenge for common mode-based model
reduction approaches. We present a model reduction method, which is suited for these kinds …

Model order reduction assisted by deep neural networks (ROM-net)

T Daniel, F Casenave, N Akkari… - Advanced Modeling and …, 2020 - Springer
In this paper, we propose a general framework for projection-based model order reduction
assisted by deep neural networks. The proposed methodology, called ROM-net, consists in …

A fast and accurate domain decomposition nonlinear manifold reduced order model

AN Diaz, Y Choi, M Heinkenschloss - Computer Methods in Applied …, 2024 - Elsevier
This paper integrates nonlinear-manifold reduced order models (NM-ROMs) with domain
decomposition (DD). NM-ROMs approximate the full order model (FOM) state in a nonlinear …

A registration method for model order reduction: data compression and geometry reduction

T Taddei - SIAM Journal on Scientific Computing, 2020 - SIAM
We propose a general---ie, independent of the underlying equation---registration method for
parameterized model order reduction. Given the spatial domain Ω⊂R^d and the manifold …