Probing fluid torque with a hydrodynamical trap: Rotation of chiral particles levitating in a turbulent jet
Langue
en
Article de revue
Ce document a été publié dans
Physics of Fluids. 2019-12-01, vol. 31, n° 12, p. 125116
American Institute of Physics
Résumé en anglais
A vertical turbulent jet is used to trap chiral particles. The particles are maintained in levitation and a stationary rotation regime is observed. The model particles used are composed of a sphere and a helical tail. The ...Lire la suite >
A vertical turbulent jet is used to trap chiral particles. The particles are maintained in levitation and a stationary rotation regime is observed. The model particles used are composed of a sphere and a helical tail. The rotating performance of the particles is investigated as a function of the length and the twisting of their tails. In addition, the flow field around a spherical particle trapped in the jet is characterized by a particle tracking velocimetry technique (3D-PTV). This flow characterization is used to compute the near-field velocity around a captured particle and to predict the rotation reported for the different geometries tested.< Réduire
Origine
Importé de halUnités de recherche