Skip to Main content Skip to Navigation
Journal articles

Convective and Absolute Eckhaus Instability Leading to Modulated Waves in a Finite Box

Nicolas B. Garnier 1 Arnaud Chiffaudel 1 François Daviaud 1, 2
1 SPEC - UMR3680 - Service de physique de l'état condensé
2 SPHYNX - Systèmes Physiques Hors-équilibre, hYdrodynamique, éNergie et compleXes
SPEC - UMR3680 - Service de physique de l'état condensé, IRAMIS - Institut Rayonnement Matière de Saclay
Abstract : We report experimental study of the secondary modulational instability of a one-dimensional nonlinear traveling wave in a long bounded channel. Two qualitatively different instability regimes involving fronts of spatio-temporal defects are linked to the convective and absolute nature of the instability. Both transitions appear to be subcritical. The spatio-temporal defects control the global mode structure.
Document type :
Journal articles
Complete list of metadata

Cited literature [12 references]  Display  Hide  Download
https://hal-cea.archives-ouvertes.fr/cea-01373861
Contributor : Dominique Girard <>
Submitted on : Thursday, September 29, 2016 - 12:09:18 PM
Last modification on : Friday, March 5, 2021 - 3:04:41 PM
Long-term archiving on: : Friday, December 30, 2016 - 1:02:54 PM

File

Vignette du document
0208015v2.pdf
Files produced by the author(s)

Identifiers

Collections

CEA | CNRS | DSM-IRAMIS | IRAMIS-SPEC | CEA-DRF | IRAMIS

Citation

Nicolas B. Garnier, Arnaud Chiffaudel, François Daviaud. Convective and Absolute Eckhaus Instability Leading to Modulated Waves in a Finite Box. Physical Review Letters, American Physical Society, 2002, 88, pp.134501. ⟨10.1103/PhysRevLett.88.134501⟩. ⟨cea-01373861⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

151

Files downloads

277