Super-resolution analysis via machine learning: a survey for fluid flows

K Fukami, K Fukagata, K Taira - Theoretical and Computational Fluid …, 2023 - Springer
This paper surveys machine-learning-based super-resolution reconstruction for vortical
flows. Super resolution aims to find the high-resolution flow fields from low-resolution data …

Convolutional neural network and long short-term memory based reduced order surrogate for minimal turbulent channel flow

T Nakamura, K Fukami, K Hasegawa, Y Nabae… - Physics of …, 2021 - pubs.aip.org
We investigate the applicability of the machine learning based reduced order model (ML-
ROM) to three-dimensional complex flows. As an example, we consider a turbulent channel …

Convolutional neural networks for fluid flow analysis: toward effective metamodeling and low dimensionalization

M Morimoto, K Fukami, K Zhang, AG Nair… - … and Computational Fluid …, 2021 - Springer
We focus on a convolutional neural network (CNN), which has recently been utilized for fluid
flow analyses, from the perspective on the influence of various operations inside it by …

Parameter flexible wildfire prediction using machine learning techniques: Forward and inverse modelling

S Cheng, Y **, SP Harrison, C Quilodrán-Casas… - Remote Sensing, 2022 - mdpi.com
Parameter identification for wildfire forecasting models often relies on case-by-case tuning
or posterior diagnosis/analysis, which can be computationally expensive due to the …

[HTML][HTML] Reduced order modeling of parametrized systems through autoencoders and SINDy approach: continuation of periodic solutions

P Conti, G Gobat, S Fresca, A Manzoni… - Computer Methods in …, 2023 - Elsevier
Highly accurate simulations of complex phenomena governed by partial differential
equations (PDEs) typically require intrusive methods and entail expensive computational …

Scientific machine learning for closure models in multiscale problems: A review

B Sanderse, P Stinis, R Maulik, SE Ahmed - arxiv preprint arxiv …, 2024 - arxiv.org
Closure problems are omnipresent when simulating multiscale systems, where some
quantities and processes cannot be fully prescribed despite their effects on the simulation's …

Experimental velocity data estimation for imperfect particle images using machine learning

M Morimoto, K Fukami, K Fukagata - Physics of Fluids, 2021 - pubs.aip.org
We propose a method using supervised machine learning to estimate velocity fields from
particle images having missing regions due to experimental limitations. As a first example, a …

Model order reduction with neural networks: Application to laminar and turbulent flows

K Fukami, K Hasegawa, T Nakamura, M Morimoto… - SN Computer …, 2021 - Springer
We investigate the capability of neural network-based model order reduction, ie,
autoencoder (AE), for fluid flows. As an example model, an AE which comprises of …

Generalization techniques of neural networks for fluid flow estimation

M Morimoto, K Fukami, K Zhang, K Fukagata - Neural Computing and …, 2022 - Springer
We demonstrate several techniques to encourage practical uses of neural networks for fluid
flow estimation. In the present paper, three perspectives which are remaining challenges for …

Benchmarking sparse system identification with low-dimensional chaos

AA Kaptanoglu, L Zhang, ZG Nicolaou, U Fasel… - Nonlinear …, 2023 - Springer
Sparse system identification is the data-driven process of obtaining parsimonious differential
equations that describe the evolution of a dynamical system, balancing model complexity …