6533b85afe1ef96bd12ba02e
RESEARCH PRODUCT
Smoothed particles hydrodynamics numerical simulations of droplets walking on viscous vibrating liquid
Diego MolteniOnofrio Rosario BattagliaEnrico Vitanzasubject
General Computer ScienceFaraday waveFOS: Physical sciences01 natural sciencesInstability010305 fluids & plasmasQuantum analogous phenomenaPhysics::Fluid DynamicsSmoothed-particle hydrodynamicsFaraday wavesymbols.namesake0103 physical sciencesFluid dynamicsQuantum system010306 general physicsPhysicsFluid dynamics numerical simulationDrop (liquid)Fluid Dynamics (physics.flu-dyn)General EngineeringPhysics - Fluid DynamicsMechanicsAmplitudesymbolsWalking dropletMatter wavedescription
We study the phenomenon of the "walking droplet", by means of numerical fluid dynamics simulations using the Smoothed Particle Hydrodynamics numerical method. This phenomenon occurs when a millimetric drop is released on the surface of an oil of the same composition, contained in a tank and subjected to vertical oscillations of frequency and amplitude very close to the Faraday instability threshold. At appropriate values of the parameters of the system under study, the oil droplet jumps permanently on the surface of the vibrating liquid forming a localized wave-particle system, reminding the behaviour of a wave particle quantum system as suggested by de Broglie. In our study, we made relevant simplifying assumptions, however we observe that the wave-drop coupling is surely obtained. Moreover, the droplet and the wave travel at nearly constant velocity, as observed in experiments. These facts suggest that the phenomenon may occur in many contexts and opens the possibility to study it in an extremely wide range of physical configurations.
year | journal | country | edition | language |
---|---|---|---|---|
2016-01-19 | Computers & Fluids |