Data-driven modeling for unsteady aerodynamics and aeroelasticity

J Kou, W Zhang - Progress in Aerospace Sciences, 2021 - Elsevier
Aerodynamic modeling plays an important role in multiphysics and design problems, in
addition to experiment and numerical simulation, due to its low-dimensional representation …

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 …

Super-resolution reconstruction of turbulent flows with machine learning

K Fukami, K Fukagata, K Taira - Journal of Fluid Mechanics, 2019 - cambridge.org
We use machine learning to perform super-resolution analysis of grossly under-resolved
turbulent flow field data to reconstruct the high-resolution flow field. Two machine learning …

Modal analysis of fluid flows: Applications and outlook

K Taira, MS Hemati, SL Brunton, Y Sun, K Duraisamy… - AIAA journal, 2020 - arc.aiaa.org
THE field of fluid mechanics involves a range of rich and vibrant problems with complex
dynamics stemming from instabilities, nonlinearities, and turbulence. The analysis of these …

Machine-learning-based spatio-temporal super resolution reconstruction of turbulent flows

K Fukami, K Fukagata, K Taira - Journal of Fluid Mechanics, 2021 - cambridge.org
We present a new data reconstruction method with supervised machine learning techniques
inspired by super resolution and inbetweening to recover high-resolution turbulent flows …

Data-driven sparse sensor placement for reconstruction: Demonstrating the benefits of exploiting known patterns

K Manohar, BW Brunton, JN Kutz… - IEEE Control Systems …, 2018 - ieeexplore.ieee.org
Optimal sensor and actuator placement is an important unsolved problem in control theory.
Nearly every downstream control decision is affected by these sensor and actuator …

Assessment of supervised machine learning methods for fluid flows

K Fukami, K Fukagata, K Taira - Theoretical and Computational Fluid …, 2020 - Springer
We apply supervised machine learning techniques to a number of regression problems in
fluid dynamics. Four machine learning architectures are examined in terms of their …

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 …

Sparse principal component analysis via variable projection

NB Erichson, P Zheng, K Manohar, SL Brunton… - SIAM Journal on Applied …, 2020 - SIAM
Sparse principal component analysis (SPCA) has emerged as a powerful technique for
modern data analysis, providing improved interpretation of low-rank structures by identifying …

Cluster-based network modeling—From snapshots to complex dynamical systems

D Fernex, BR Noack, R Semaan - Science Advances, 2021 - science.org
We propose a universal method for data-driven modeling of complex nonlinear dynamics
from time-resolved snapshot data without prior knowledge. Complex nonlinear dynamics …