A numerical investigation on direct and data-driven flutter prediction methods
File(s)
Published version
Author(s)
Simiriotis, Nikolaos
Palacios, Rafael
Type
Journal Article
Abstract
Three alternative algorithms for dynamic aeroelastic stability analysis are investigated. They are based either on direct search of oscillatory conditions of the coupled system or on eigenvalue analysis from frequency-domain sampling of the unsteady aerodynamics. The aerodynamic forcing is obtained with a harmonic-balanced solver developed for a general-purpose finite-volume fluid dynamics solver. This new implementation is first verified against experimental flutter results from the literature. A wing with relatively low bending stiffness is then used to explore the relative performance of each approach, both in terms of the numerical robustness and of their usability to support aeroelastic design.
Date Issued
2023-02-01
Date Acceptance
2023-01-11
Citation
Journal of Fluids and Structures, 2023, 117
ISSN
0889-9746
Publisher
Elsevier
Journal / Book Title
Journal of Fluids and Structures
Volume
117
Copyright Statement
© 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/ licenses/by/4.0/).
License URL
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000924964600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
Engineering
Engineering, Mechanical
Flutter
Harmonic balance
INTERPOLATION
Limit -cycle oscillations
Loewner framework
Mechanics
Numerical methods
Science & Technology
SIMULATION
Technology
Unsteady aerodynamics
Publication Status
Published
Article Number
103835
Date Publish Online
2023-01-19