Precise measurement of particle-wall hydrodynamic interactions at low Reynolds number using laser interferometry - Normandie Université Access content directly
Journal Articles Physics of Fluids A: Fluid Dynamics (1989-1993) Year : 1993

Precise measurement of particle-wall hydrodynamic interactions at low Reynolds number using laser interferometry

Abstract

The motion of a spherical particle (with radius 1 to 6 mm) in a viscous fluid is measured using laser interferometry. The typical sensitivity on the measured displacement of the sphere is of the order of 50 nm. The particle is moving on the axis of a closed cylinder. The hydrodynamic interactions between the particle and the walls of the cylinder are compared with the theoretical result of Sano [J. Phys. Soc. Jpn. 56, 2713 (1987)] valid for a very small sphere. The agreement is excellent for the smallest sphere used in the experiment. The experiment also agrees with the result from the theory of lubrication when the sphere is close to a plane end wall. The effect of the particle roughness appears at small distances. Laser interferometry appears as a useful tool to study particle–wall hydrodynamic interactions when the geometry is cumbersome.
No file

Dates and versions

hal-01777582 , version 1 (24-04-2018)

Identifiers

Cite

N. Lecoq, François Feuillebois, N. Anthore, R. Anthore, F. Bostel, et al.. Precise measurement of particle-wall hydrodynamic interactions at low Reynolds number using laser interferometry. Physics of Fluids A: Fluid Dynamics (1989-1993) , 1993, 5 (1), pp.3-12. ⟨10.1063/1.858787⟩. ⟨hal-01777582⟩
38 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More