Flag Flutter Close to a Free Surface: A Local Stability Analysis

Jérôme Mougel; Sébastien Michelin

doi:10.1007/978-3-030-55594-8_17

Flag Flutter Close to a Free Surface: A Local Stability Analysis

Jérôme Mougel
, Sébastien Michelin

Université Paul Sabatier

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Abstract

A local stability analysis is performed to describe the effects of the free-surface on the stability of a flag-like flexible structure in a two-dimensional water channel. It is found that the free surface is at the root of a new instability arising from a resonance between free-surface waves and structural waves coupled with the flow referred to as flag waves. Interestingly the obtained instability may appear for lower reduced velocities than classical flutter. Additionally it is found that the free surface may affect significantly classical flutter threshold.

Original language	English
Title of host publication	Notes on Numerical Fluid Mechanics and Multidisciplinary Design
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	173-186
Number of pages	14
DOIs	https://doi.org/10.1007/978-3-030-55594-8_17
Publication status	Published - 1 Jan 2021

Publication series

Name	Notes on Numerical Fluid Mechanics and Multidisciplinary Design
Volume	147
ISSN (Print)	1612-2909
ISSN (Electronic)	1860-0824

Keywords

Flexible structures
Fluid-structure interactions
Free surface waves
Instability

Access to Document

10.1007/978-3-030-55594-8_17

Cite this

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Flag Flutter Close to a Free Surface: A Local Stability Analysis. / Mougel, Jérôme; Michelin, Sébastien.
Notes on Numerical Fluid Mechanics and Multidisciplinary Design. Springer Science and Business Media Deutschland GmbH, 2021. p. 173-186 (Notes on Numerical Fluid Mechanics and Multidisciplinary Design; Vol. 147).

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

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KW - Fluid-structure interactions

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