[PDF] Top 20 Non-stationary wave turbulence in elastic plates: a numerical investigation

... thin elastic plates can exhibit strongly nonlinear regimes characterized by a broadband Fourier spectrum and a cascade of energy from the large to the small ...of wave turbulence ... Voir le document complet

... Ideally, a modal method with application to sound synthesis should avoid all ad-hoc assumptions and reproduce the dynamics ...with a large precision, but the fact of having decomposed the original, ... Voir le document complet

... tions in the static position are unavoidable with a real ...However, numerical simulations shown in [DCTB14] clearly highlight that simple imperfections with large wavelength have no incidence ... Voir le document complet

... 47.35.Tv,47.65.Cb,47.27.-i Wave turbulence is an out-of-equilibrium state where waves interact with each other nonlinearly through N - wave resonance ...of wave turbu- lence is the random ... Voir le document complet

... as a function of the injected flux ε I ...outlooks A phenomenological model built from the two solutions of the kinetic equation of wave turbulence in thin plates has been ... Voir le document complet

... suggested in [6]. This cannot be also ascribed to a possible anisotropy of nonlinear waves, since similar wave turbulence results are obtained when the horizontal field is normal or collinear ... Voir le document complet

... turbulence in a high-gravity ...to a factor 10, these two parameters being hardly modified differently since (ρ=γ) is roughly constant for most usual ...significantly in laboratory the ... Voir le document complet

... gravity-capillary wave turbulence on the surface of a fluid in a high-gravity ...using a large-diameter centrifuge, the effective gravity acceleration is tuned up to 20 times the ... Voir le document complet

... problem in the special case where the elastic body is a linearly elastic plate of constant thickness, clamped over a portion of its lateral ...face. In this respect, we first ... Voir le document complet

... Engineering in Mechanics and Materials laboratory (PIMM) École nationale supérieure d'arts et métiers 151 Boulevard de l'Hôpital, 75013 Paris, France Abstract: One of the most important issues in ... Voir le document complet

... The wave maker is driven sinusoidally at a fixed frequency f ...the wave crests by using a camera. For a fixed f , λ is measured for different values of the horizontal magnetic field ... Voir le document complet

... values in uncharted waters, with likely large ...ocean, a parameter measured much more frequently than surface drift or near-surface ...waves in a way consistent with their known physical ... Voir le document complet

... interested in an analysis full classification of the one-flux solutions equation (13) for for different values of the problem parameter ...introduce a (KZ index) parameter k = (s − 2)/3 for the direct ... Voir le document complet

... For a weak forcing, the wave amplitude η(t) is found to fluctuate around a zero mean value in a roughly Gaussian way, as well as the local slope of the surface waves δ η (t) computed ... Voir le document complet

... homogenized elastic properties in the unit cell, are close to being isotropic, which is in fact the case - and that (45) can be rearranged as in Capdeville et ...0 in 1D). 3 NON ... Voir le document complet

... has a negligible effect on the ...have a rapid decay with respect to the elevation y, so that the domain height H does not need to be too ...convected in the horizontal direction at long distance far ... Voir le document complet

... described, in principle, by the wave turbu- lence theory as such vortices admit hydrodynamic excitations known as Kelvin ...As a result, energy is transferred towards small scales through a ... Voir le document complet

... thèse a représenté pour moi une expérience inoubliable et très enrichissante, à la fois sur le plan professionnel et du point de vue personnel, car j’ai eu la chance d’être entourée par beaucoup de personnes ... Voir le document complet

... with a trial radius of curvature R ∗ (X) (Z- ...to a global curvature of the strip portion regardless to the axial position Z, which will be corrected in step ...conditions in the end. This ... Voir le document complet

... are in reasonable agreement with the finite-difference solution of the shallow-water ...equations. In the self-similar regime, it can be observed that the decay of current speed with time is consistent, but ... Voir le document complet