LEROUX , A.

Grâce à l'excitation paramétrique d'ondes de surface, nous avons mis en évidence l'existence d'une vague ayant alternativement la forme d'une étoile et d'un polygone. La symétrie de l'étoile (c'est à dire le nombre de ses branches) est indépendante de la forme du récipient, et varie avec les paramètres de vibration imposés. Nous montrons qu'un...

By means of the parametric excitation of water waves in a Hele-Shaw cell, we report the existence of two new types of highly localized, standing surface waves of large amplitude. They are respectively of odd and even symmetries. Both solitary waves oscillate subharmonically with the forcing frequency. They are highly nonlinear, and differ...

We report a new type of standing gravity waves of large amplitude, having alternatively the shape of a star and of a polygon. This wave is observed by means of a laboratory experiment by vibrating vertically a tank. The symmetry of the star (i.e. the number of branches) is independent of the container form and size, and can be changed according...

Grâce à l'excitation paramétrique d'ondes de surface, nous avons mis en évidence l'existence d'une vague ayant alternativement la forme d'une étoile et d'un polygone. La symétrie de l'étoile (c'est à dire le nombre de ses branches) est indépendante de la forme du récipient, et varie avec les paramètres de vibration imposés. Nous montrons qu'un...

By means of the parametric excitation of water waves in a Hele-Shaw cell, we report the existence of two new types of highly localized, standing surface waves of large amplitude. They are respectively of odd and even symmetries. Both solitary waves oscillate subharmonically with the forcing frequency. They are highly nonlinear, and differ...

We report a new type of standing gravity waves of large amplitude, having alternatively the shape of a star and of a polygon. This wave is observed by means of a laboratory experiment by vibrating vertically a tank. The symmetry of the star (i.e. the number of branches) is independent of the container form and size, and can be changed according...