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 …

Transonic aeroelasticity: A new perspective from the fluid mode

C Gao, W Zhang - Progress in Aerospace Sciences, 2020 - Elsevier
Within the transonic regime, the aeroelastic problems exhibit many unique characteristics
compared with subsonic and supersonic cases. Although a lot of research has been carried …

Assessment of unsteady flow predictions using hybrid deep learning based reduced-order models

SR Bukka, R Gupta, AR Magee, RK Jaiman - Physics of Fluids, 2021 - pubs.aip.org
In this paper, we present two deep learning-based hybrid data-driven reduced-order models
for prediction of unsteady fluid flows. These hybrid models rely on recurrent neural networks …

An efficient deep learning technique for the Navier-Stokes equations: Application to unsteady wake flow dynamics

TP Miyanawala, RK Jaiman - arXiv preprint arXiv:1710.09099, 2017 - arxiv.org
We present an efficient deep learning technique for the model reduction of the Navier-
Stokes equations for unsteady flow problems. The proposed technique relies on the …

Mode competition in galloping of a square cylinder at low Reynolds number

X Li, Z Lyu, J Kou, W Zhang - Journal of Fluid Mechanics, 2019 - cambridge.org
Galloping is a type of fluid-elastic instability phenomenon characterized by large-amplitude
low-frequency oscillations of the structure. The aim of the present study is to reveal the …

Deep neural network based reduced-order model for fluid–structure interaction system

R Han, Y Wang, W Qian, W Wang, M Zhang… - Physics of Fluids, 2022 - pubs.aip.org
Fluid–structure interaction analysis has high computing costs when using computational
fluid dynamics. These costs become prohibitive when optimizing the fluid–structure …

Two-degree-of-freedom flow-induced vibrations of a D-section prism

W Chen, MM Alam, Y Li, C Ji - Journal of Fluid Mechanics, 2023 - cambridge.org
This paper presents a comprehensive study of flow-induced vibrations of a D-section prism
with various angles of attack. Furthermore, a wake mode map in the examined parametric …

Mode transformation and interaction in vortex-induced vibration of laminar flow past a circular cylinder

Z Cheng, FS Lien, E Yee, JH Zhang - Physics of Fluids, 2022 - pubs.aip.org
An investigation of the mode transformation and interaction underlying the behavior of vortex-
induced vibration (VIV) of a flow past a circular cylinder elastically mounted on a linear …

Modelling of flow-induced vibration of bluff bodies: A comprehensive survey and future prospects

Y Wu, Z Cheng, R McConkey, FS Lien, E Yee - Energies, 2022 - mdpi.com
A comprehensive review of modelling techniques for the flow-induced vibration (FIV) of bluff
bodies is presented. This phenomenology involves bidirectional fluid–structure interaction …

There is no critical mass ratio for galloping of a square cylinder under flow

P Han, E de Langre - Journal of Fluid Mechanics, 2022 - cambridge.org
The flow-induced vibration of square cylinders under flow is known to be caused by two
distinct mechanisms of interaction: vortex-induced vibrations and galloping. In the present …