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Updated: Sep 25, 2025

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
Published on: May 20, 2014
Traveling waves of a colloidal suspension in a closed cell
Ivan Cherepanov1, Boris Smorodin2
1Department of Radio Electronics and Information Security, Perm State University, 15 Bukirev Street, Perm, Russia, 614990.
Abstract:
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.
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