BAROIS, Thomas; RICARD, Guillaume; CHAMPAIN, Victor; GEY, Lucas; KELLAY, Hamid

doi:10.1063/5.0002955

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

BAROIS, Thomas
Laboratoire Ondes et Matière d'Aquitaine [LOMA]

RICARD, Guillaume

CHAMPAIN, Victor

Langue

Article de revue

Ce document a été publié dans

Physics of Fluids. 2020-04-01, vol. 32, n° 4, p. 045111

American Institute of Physics

Résumé en anglais

Two vertical turbulent round jets are used to levitate a spherical particle. First, a symmetric configuration is investigated with the two jets of equal flow rates. A structure reminiscent of a pitchfork bifurcation is reported and characterized between a double trap configuration for low flow rates and a single trap regime at larger flow rates. A second configuration is then studied with the flow rates that differ between the left and the right jets. In this case, a preferential transition towards the jet of higher flow rate is reported and quantified. A model is presented predicting the force field for the symmetric and the asymmetric configurations. The model is compared to the force field measurements realized with a particle on a flexible cantilever. Finally, a particle dynamics simulation is proposed to analyze in more details the transition for the levitation in the symmetric and the asymmetric configurations.< Réduire

Métadonnées

Licence d’utilisation du document

The levitation of a sphere by two parallel turbulent jets

Langue

Ce document a été publié dans

Résumé en anglais

DOI

Origine

Unités de recherche