Active microrheology of fluids with orientational order
Idioma
en
Article de revue
Este ítem está publicado en
Condensed Matter Physics. 2024-03-28, vol. 27, n° 1, p. 13801
Institute for Condensed Matter Physics
Resumen en inglés
We study the dynamics of a driven spherical colloidal particle moving in a fluid with a broken rotational symmetry. Using a nematic liquid crystal as a model, we demonstrate that when the applied force is not aligned along ...Leer más >
We study the dynamics of a driven spherical colloidal particle moving in a fluid with a broken rotational symmetry. Using a nematic liquid crystal as a model, we demonstrate that when the applied force is not aligned along or perpendicular to the orientational order, the colloidal velocity does not align with the force, but forms an angle with respect to the pulling direction. This leads to blue an anisotropic hydrodynamic drag tensor which depends on the material parameters. In the case of nematic liquid crystal, we give an analytical expression and discuss the resulting implications for active microrheology experiments on fluids with broken rotational symmetry.< Leer menos
Proyecto ANR
Guidage des particules artificielles auto-propulsées - ANR-19-CE06-0012
Orígen
Importado de HalCentros de investigación