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 …
Conventional reduced order modeling techniques such as the reduced basis (RB) method (relying, eg, on proper orthogonal decomposition (POD)) may incur in severe limitations …
Numerical simulation of parametrized differential equations is of crucial importance in the study of real-world phenomena in applied science and engineering. Computational methods …
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 …
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 …
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 …
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 …
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 …
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 …