Poster: Self Inducing Subharmonic Waves
Résumé
High frequency excitation at 100g acceleration
amplitude drives new wave modes on a vertically
vibrated sessile drop. We showcase a self inducing
phenomenon that couples high-mode subharmonic
waves.
Unlike Faraday waves, the sessile drops experience a
polar dependence of the parametric vibration. Rather
than the harmonics of vertical vibration, it is the
axisymmetric harmonic waves that induce azimuthal
subharmonic waves near the contact line − for
example, a two-mass parametric vibrated pendulum
in harmonic-subharmonic coupling state. We
therefore conclude that all subharmonic waves are not Faraday waves.
Domaines
Science non linéaire [physics]
Origine : Fichiers produits par l'(les) auteur(s)