[HTML][HTML] Reduced-order modeling of advection-dominated systems with recurrent neural networks and convolutional autoencoders
A common strategy for the dimensionality reduction of nonlinear partial differential equations
(PDEs) relies on the use of the proper orthogonal decomposition (POD) to identify a reduced …
(PDEs) relies on the use of the proper orthogonal decomposition (POD) to identify a reduced …
An artificial neural network framework for reduced order modeling of transient flows
This paper proposes a supervised machine learning framework for the non-intrusive model
order reduction of unsteady fluid flows to provide accurate predictions of non-stationary state …
order reduction of unsteady fluid flows to provide accurate predictions of non-stationary state …
Time-series learning of latent-space dynamics for reduced-order model closure
We study the performance of long short-term memory networks (LSTMs) and neural ordinary
differential equations (NODEs) in learning latent-space representations of dynamical …
differential equations (NODEs) in learning latent-space representations of dynamical …
Data-driven filtered reduced order modeling of fluid flows
We propose a data-driven filtered reduced order model (DDF-ROM) framework for the
numerical simulation of fluid flows. The novel DDF-ROM framework consists of two steps:(i) …
numerical simulation of fluid flows. The novel DDF-ROM framework consists of two steps:(i) …
Neural network closures for nonlinear model order reduction
Many reduced-order models are neither robust with respect to parameter changes nor cost-
effective enough for handling the nonlinear dependence of complex dynamical systems. In …
effective enough for handling the nonlinear dependence of complex dynamical systems. In …
Physically constrained data‐driven correction for reduced‐order modeling of fluid flows
M Mohebujjaman, LG Rebholz… - International Journal for …, 2019 - Wiley Online Library
We have recently proposed a data‐driven correction reduced‐order model (DDC‐ROM)
framework for the numerical simulation of fluid flows, which can be formally written as …
framework for the numerical simulation of fluid flows, which can be formally written as …
On closures for reduced order models—A spectrum of first-principle to machine-learned avenues
For over a century, reduced order models (ROMs) have been a fundamental discipline of
theoretical fluid mechanics. Early examples include Galerkin models inspired by the Orr …
theoretical fluid mechanics. Early examples include Galerkin models inspired by the Orr …
A hybrid projection/data-driven reduced order model for the Navier-Stokes equations with nonlinear filtering stabilization
Abstract We develop a Reduced Order Model (ROM) for the Navier-Stokes equations with
nonlinear filtering stabilization. Our approach, that can be interpreted as a Large Eddy …
nonlinear filtering stabilization. Our approach, that can be interpreted as a Large Eddy …
A POD-Galerkin reduced order model for a LES filtering approach
Abstract We propose a Proper Orthogonal Decomposition (POD)-Galerkin based Reduced
Order Model (ROM) for an implementation of the Leray model that combines a two-step …
Order Model (ROM) for an implementation of the Leray model that combines a two-step …
[HTML][HTML] Machine learning closures for model order reduction of thermal fluids
We put forth a data-driven closure modeling approach for stabilizing projection based
reduced order models for the Bousinessq equations. The effect of discarded modes is taken …
reduced order models for the Bousinessq equations. The effect of discarded modes is taken …