%0 Journal Article
%T Dynamics of prolate spheroids in the vicinity of an air–water interface
%+ Max Planck Institute for Dynamics and Self-Organization (MPIDS)
%+ Istituto per i Polimeri, Compositi e Biomateriali (IPCB)
%+ Institut Charles Sadron (ICS)
%+ Laboratoire Charles Coulomb (L2C)
%+ Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale
%A Villa, Stefano
%A Larobina, Domenico
%A Stocco, Antonio
%A Blanc, Christophe
%A Villone, Massimiliano
%A d'Avino, Gaetano
%A Nobili, Maurizio
%Z LabEx NUMEV (Contract no. AAP2014-2-044)
%< avec comité de lecture
%@ 1744-683X
%J Soft Matter
%I Royal Society of Chemistry
%V 19
%N 14
%P 2646-2653
%8 2023
%D 2023
%R 10.1039/D2SM01665F
%M 36967649
%K colloids
%Z Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]
%Z Chemical Sciences/PolymersJournal articles
%X In this article, we present the mobilities of prolate ellipsoidal micrometric particles close to an air–water interface measured by dual wave reflection interference microscopy. Particle's position and orientation with respect to the interface are simultaneously measured as a function of time. From the measured mean square displacement, five particle mobilities (3 translational and 2 rotational) and two translational–rotational cross-correlations are extracted. The fluid dynamics governing equations are solved by the finite element method to numerically evaluate the same mobilities, imposing either slip and no-slip boundary conditions to the flow at the air–water interface. The comparison between experiments and simulations reveals an agreement with no-slip boundary conditions prediction for the translation normal to the interface and the out-of-plane rotation, and with slip ones for parallel translations and in-plane rotation. We rationalize these evidences in the framework of surface incompressibility at the interface.
%G English
%2 https://hal.science/hal-04072095v2/document
%2 https://hal.science/hal-04072095v2/file/d2sm01665f.pdf
%L hal-04072095
%U https://hal.science/hal-04072095
%~ CNRS
%~ UNIV-STRASBG
%~ L2C
%~ INSA-STRASBOURG
%~ INC-CNRS
%~ UNIV-MONTPELLIER
%~ SITE-ALSACE
%~ INSA-GROUPE
%~ ANR
%~ UM-2015-2021
%~ UM-EPE