Résumé
Conditions for absolute instability of the elastic walls of a plane channel with potential flow are investigated. The absolute instability threshold is given in closed form in the thin film approximation for walls made of plates or membranes. The more general case is solved numerically and is compared with more classical results for a single wall in the presence of a semi-infinite fluid domain. It is found that absolute instability is strongly influenced by the membrane or plate nature of the wall stiffness. (C) 2000 Academie des sciences/Editions scientifiques et medicales Elsevier SAS.
| Titre traduit de la contribution | Absolutely unstable varicose waves in an elastic channel |
|---|---|
| langue originale | Français |
| Pages (de - à) | 61-65 |
| Nombre de pages | 5 |
| journal | Comptes Rendus de l'Academie de Sciences - Serie IIb: Mecanique, Physique, Chimie, Astronomie |
| Volume | 328 |
| Numéro de publication | 1 |
| Les DOIs | |
| état | Publié - 1 janv. 2000 |
mots-clés
- Absolute instability
- Channel flow
- Fluide-structure interaction
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