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View article: Thermodynamics and Statistical Equilibrium of Large-Scale Hydroelastic Wave Turbulence
Thermodynamics and Statistical Equilibrium of Large-Scale Hydroelastic Wave Turbulence Open
Understanding how statistical equilibrium can occur in out-of-equilibrium systems is of paramount interest, as it would enable the use of statistical mechanics tools to these systems. Here, we report the first experimental evidence of stat…
View article: Soliton Dynamics over a Disordered Topography
Soliton Dynamics over a Disordered Topography Open
We report on the dynamics of a soliton propagating on the surface of a fluid in a 4-m-long canal with a random or periodic bottom topography. Using a full space-and-time resolved wavefield measurement, we evidence, for the first time exper…
View article: Freely Decaying Saffman Turbulence Experimentally Generated by Magnetic Stirrers
Freely Decaying Saffman Turbulence Experimentally Generated by Magnetic Stirrers Open
We investigate experimentally the decay of three-dimensional hydrodynamic turbulence, initially generated by the erratic motions of centimeter-size magnetic stirrers in a closed container. Such zero-mean-flow homogeneous isotropic turbulen…
View article: Interaction of soliton gases in deep-water surface gravity waves
Interaction of soliton gases in deep-water surface gravity waves Open
Soliton gases represent large random soliton ensembles in physical systems that display integrable dynamics at leading order. We report hydrodynamic experiments in which we investigate the interaction between two beams or jets of soliton g…
View article: Experimental study of three-dimensional turbulence under a free surface
Experimental study of three-dimensional turbulence under a free surface Open
In many environmental flows, an air-water free surface interacts with a turbulent flow in the water phase. To mimic this situation, we propose an original experimental setup, based on the Randomly Actuated Synthetic Jet Array (RASJA) forci…
View article: A numerical direct scattering method for the periodic sine-Gordon equation
A numerical direct scattering method for the periodic sine-Gordon equation Open
We propose a procedure for computing the direct scattering transform of the periodic sine-Gordon equation. This procedure, previously used within the periodic Korteweg-de Vries equation framework, is implemented for the case of the sine-Go…
View article: Experimental evidence of random shock-wave intermittency
Experimental evidence of random shock-wave intermittency Open
We report the experimental observation of intermittency in a regime dominated by random shock waves on the surface of a fluid. We achieved such a nondispersive surface-wave field using a magnetic fluid subjected to a high external magnetic…
View article: Interaction of soliton gases in deep-water surface gravity waves
Interaction of soliton gases in deep-water surface gravity waves Open
Soliton gases represent large random soliton ensembles in physical systems that display integrable dynamics at the leading order. We report hydrodynamic experiments in which we investigate the interaction between two "beams" or "jets" of s…
View article: Statistics of a 2D immersed granular gas magnetically forced in volume
Statistics of a 2D immersed granular gas magnetically forced in volume Open
We present an experimental study of the dynamics of a set of magnets within a fluid in which a remote torque applied by a vertical oscillating magnetic field transfers angular momentum to individual magnets. This system differs from previo…
View article: Evidence of experimental three-wave resonant interactions between two dispersion branches
Evidence of experimental three-wave resonant interactions between two dispersion branches Open
We report the observation of nonlinear three-wave resonant interactions between two different branches of the dispersion relation of hydrodynamic waves, namely the gravity-capillary and sloshing modes. These atypical interactions are inves…
View article: Evidence of experimental three-wave resonant interactions between two dispersion branches
Evidence of experimental three-wave resonant interactions between two dispersion branches Open
We report the observation of nonlinear three-wave resonant interactions between two different branches of the dispersion relation of hydrodynamic waves, namely the gravity-capillary and sloshing modes. These atypical interactions are inves…
View article: Statistics of a two-dimensional immersed granular gas magnetically forced in volume
Statistics of a two-dimensional immersed granular gas magnetically forced in volume Open
We present an experimental study of the dynamics of a set of magnets within a fluid in which a remote torque applied by a vertical oscillating magnetic field transfers angular momentum to individual magnets. This system differs from previo…
View article: Transition from wave turbulence to acousticlike shock-wave regime
Transition from wave turbulence to acousticlike shock-wave regime Open
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View article: Transition from wave turbulence to acousticlike shock-wave regime
Transition from wave turbulence to acousticlike shock-wave regime Open
We report on the experimental observation of a transition from a dispersive wave turbulence regime to a nondispersive regime involving shock waves on the surface of a fluid. We use a magnetic fluid in a canal subjected to an external horiz…
View article: Axisymmetric gravity-capillary standing waves on the surface of a fluid
Axisymmetric gravity-capillary standing waves on the surface of a fluid Open
We report on the experimental study of axisymmetric gravity-capillary\nstanding waves generated by a vertically vibrating ring partially immersed into\na fluid. Different regimes of standing waves are highlighted at the basin\ncenter depen…
View article: Experimental observation of periodic Korteweg-de Vries solitons along a torus of fluid
Experimental observation of periodic Korteweg-de Vries solitons along a torus of fluid Open
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 observ…
View article: Statistical Equilibrium of Large Scales in Three-Dimensional Hydrodynamic Turbulence
Statistical Equilibrium of Large Scales in Three-Dimensional Hydrodynamic Turbulence Open
We investigate experimentally three-dimensional (3D) hydrodynamic turbulence at scales larger than the forcing scale. We manage to perform a scale separation between the forcing scale and the container size by injecting energy into the flu…
View article: Statistical Equilibrium of Large Scales in Three-Dimensional Hydrodynamic Turbulence
Statistical Equilibrium of Large Scales in Three-Dimensional Hydrodynamic Turbulence Open
We investigate experimentally three-dimensional (3D) hydrodynamic turbulence at scales larger than the forcing scale. We manage to perform a scale separation between the forcing scale and the container size by injecting energy into the flu…
View article: Nonlinear dispersion relation in integrable turbulence
Nonlinear dispersion relation in integrable turbulence Open
We investigate numerically and experimentally the concept of nonlinear dispersion relation (NDR) in the context of partially coherent waves propagating in a one-dimensional water tank. The nonlinear random waves have a narrow-bandwidth Fou…
View article: Statistics of rogue waves in isotropic wave fields
Statistics of rogue waves in isotropic wave fields Open
We investigate the statistics of rogue waves occurring in the inverse cascade of surface gravity wave turbulence. In such statistically homogeneous, stationary and isotropic wave fields, low-frequency waves are generated by nonlinear inter…
View article: Three-dimensional direct numerical simulation of free-surface magnetohydrodynamic wave turbulence
Three-dimensional direct numerical simulation of free-surface magnetohydrodynamic wave turbulence Open
We report on three-dimensional direct numerical simulation of wave turbulence on the free surface of a magnetic fluid subjected to an external horizontal magnetic field. A transition from capillary-wave turbulence to anisotropic magneto-ca…
View article: Wave spectroscopy in a driven granular material
Wave spectroscopy in a driven granular material Open
Driven granular media constitute model systems in out-of-equilibrium statistical physics. By assimilating the motions of granular particles to those of atoms, by analogy, one can obtain macroscopic equivalent of phase transitions. Here, we…
View article: Three-dimensional direct numerical simulation of free-surface magnetohydrodynamic wave turbulence
Three-dimensional direct numerical simulation of free-surface magnetohydrodynamic wave turbulence Open
We report on three-dimensional direct numerical simulation of wave turbulence on the free surface of a magnetic fluid subjected to an external horizontal magnetic field. A transition from capillarywave turbulence to anisotropic magneto-cap…
View article: Prediction and manipulation of hydrodynamic rogue waves via nonlinear spectral engineering
Prediction and manipulation of hydrodynamic rogue waves via nonlinear spectral engineering Open
Peregrine soliton (PS) is widely regarded as a prototype nonlinear structure\ncapturing properties of rogue waves that emerge in the nonlinear propagation of\nunidirectional wave trains. As an exact breather solution of the\none-dimensiona…
View article: Experimental observation of periodic Korteweg-de Vries solitons along a torus of fluid
Experimental observation of periodic Korteweg-de Vries solitons along a torus of fluid Open
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 observ…
View article: Experimental observation of periodic Korteweg-de Vries solitons along a\n torus of fluid
Experimental observation of periodic Korteweg-de Vries solitons along a\n torus of fluid Open
We report on the experimental observation of solitons propagating along a\ntorus of fluid. We show that such a periodic system leads to significant\ndifferences compared to the classical plane geometry. In particular, we\nhighlight the obs…
View article: Experimental Periodic Korteweg-de Vries Solitons along a Torus of Fluid
Experimental Periodic Korteweg-de Vries Solitons along a Torus of Fluid Open
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 observ…