Experimental observation of periodic Korteweg-de Vries solitons along a torus of fluid - Laboratoire d'Informatique pour la Mécanique et les Sciences de l'Ingénieur
Article Dans Une Revue EPL - Europhysics Letters Année : 2022

Experimental observation of periodic Korteweg-de Vries solitons along a torus of fluid

Résumé

We report on the experimental observation of solitons propagating along a torus of fluid. We show that such a periodic system leads to significant differences compared to the classical plane geometry. In particular, we highlight the observation of subsonic elevation solitons, and a nonlinear dependence of the soliton velocity on its amplitude. The soliton profile, velocity, collision, and dissipation are characterized using high resolution space-time measurements. By imposing {\em periodic boundary conditions} onto Korteweg-de Vries (KdV) equation, we recover these observations. A nonlinear spectral analysis of solitons (periodic inverse scattering transform) is also implemented and experimentally validated in this periodic geometry. Our work thus reveals the importance of periodicity for studying solitons and could be applied to other fields involving periodic systems governed by a KdV equation.
Fichier principal
Vignette du fichier
mainv7_srAndSuppMAt.pdf (4.29 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03649664 , version 1 (22-04-2022)
hal-03649664 , version 2 (14-06-2022)

Identifiants

Citer

Filip Novkoski, Chi-Tuong Pham, Eric Falcon. Experimental observation of periodic Korteweg-de Vries solitons along a torus of fluid. EPL - Europhysics Letters, 2022, 139, pp.53003. ⟨10.1209/0295-5075/ac8a12⟩. ⟨hal-03649664v2⟩
163 Consultations
54 Téléchargements

Altmetric

Partager

More