Enhancing computational fluid dynamics with machine learning

R Vinuesa, SL Brunton - Nature Computational Science, 2022 - nature.com
Abstract Machine learning is rapidly becoming a core technology for scientific computing,
with numerous opportunities to advance the field of computational fluid dynamics. Here we …

Learning physics-constrained subgrid-scale closures in the small-data regime for stable and accurate LES

Y Guan, A Subel, A Chattopadhyay… - Physica D: Nonlinear …, 2023 - Elsevier
We demonstrate how incorporating physics constraints into convolutional neural networks
(CNNs) enables learning subgrid-scale (SGS) closures for stable and accurate large-eddy …

Neural operator: Learning maps between function spaces with applications to pdes

N Kovachki, Z Li, B Liu, K Azizzadenesheli… - Journal of Machine …, 2023 - jmlr.org
The classical development of neural networks has primarily focused on learning map**s
between finite dimensional Euclidean spaces or finite sets. We propose a generalization of …

Machine learning–accelerated computational fluid dynamics

D Kochkov, JA Smith, A Alieva, Q Wang… - Proceedings of the …, 2021 - pnas.org
Numerical simulation of fluids plays an essential role in modeling many physical
phenomena, such as weather, climate, aerodynamics, and plasma physics. Fluids are well …

A physics-informed diffusion model for high-fidelity flow field reconstruction

D Shu, Z Li, AB Farimani - Journal of Computational Physics, 2023 - Elsevier
Abstract Machine learning models are gaining increasing popularity in the domain of fluid
dynamics for their potential to accelerate the production of high-fidelity computational fluid …

Scalable transformer for pde surrogate modeling

Z Li, D Shu, A Barati Farimani - Advances in Neural …, 2023 - proceedings.neurips.cc
Transformer has shown state-of-the-art performance on various applications and has
recently emerged as a promising tool for surrogate modeling of partial differential equations …

U-no: U-shaped neural operators

MA Rahman, ZE Ross, K Azizzadenesheli - arxiv preprint arxiv …, 2022 - arxiv.org
Neural operators generalize classical neural networks to maps between infinite-dimensional
spaces, eg, function spaces. Prior works on neural operators proposed a series of novel …

Coherent structures in wall-bounded turbulence

J Jiménez - Journal of Fluid Mechanics, 2018 - cambridge.org
This article discusses the description of wall-bounded turbulence as a deterministic high-
dimensional dynamical system of interacting coherent structures, defined as eddies with …

Data-assisted reduced-order modeling of extreme events in complex dynamical systems

ZY Wan, P Vlachas, P Koumoutsakos, T Sapsis - PloS one, 2018 - journals.plos.org
The prediction of extreme events, from avalanches and droughts to tsunamis and epidemics,
depends on the formulation and analysis of relevant, complex dynamical systems. Such …

Score-based data assimilation

F Rozet, G Louppe - Advances in Neural Information …, 2023 - proceedings.neurips.cc
Data assimilation, in its most comprehensive form, addresses the Bayesian inverse problem
of identifying plausible state trajectories that explain noisy or incomplete observations of …