https://doi.org/10.1140/epje/s10189-021-00041-w
Regular Article - Soft Matter
Microspheres viscous drag at a deformed fluid interface: particle’s weight and electrical charges effects
1
Faculté des Sciences de Tunis, Université de Tunis El Manar, LR99ES16 Laboratoire Physique de la Matière Molle et de la Modélisation Électromagnétique, 2092, Tunis, Tunisia
2
Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-Université de Montpellier, Montpellier, France
d
maurizio.nobili@umontpellier.fr
Received:
15
September
2020
Accepted:
19
February
2021
Published online:
10
March
2021
When a microparticle is trapped at a fluid interface, particle’s electrical charge and weight combine to deform the interface. Such deformation is expected to affect the particle diffusion via hydrodynamics boundary conditions. Using available models of particle-induced electrostatic deformation of the interface and particle dynamics at the interface, we are able to analytically predict particle diffusion coefficient values in a large range of particle’s contact angle and size. This might offer a solid background of numerical values to compare with for future experimental studies in the field of particle diffusion at a fluid interface.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2021
