Regular Article - Soft Matter
Traveling waves of a colloidal suspension in a closed cell
Department of Radio Electronics and Information Security, Perm State University, 15 Bukirev Street, 614990, Perm, Russia
2 Department of Physics of Phase Transitions, Perm State University, 15 Bukirev Street, 614990, Perm, Russia
Accepted: 6 April 2022
Published online: 25 April 2022
Two-dimensional oscillatory flows in the convective cell filled with a colloidal suspension are investigated. We consider transient and permanent evolution scenarios of the traveling wave that were found in experimental investigation (Donzelli et al. in Phys Rev Lett 102:104503, 2009). The nanoparticle transport mechanisms (thermodiffusion and gravity settling) are analyzed and elucidated with the help of finite-difference numerical simulations for Hyflon MFA colloidal suspension. The spatiotemporal characteristics of the stable (permanent) traveling waves are determined. The dependence of the Rayleigh number on the Lewis number at the boundary of existence of the stable traveling wave is obtained.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2022