Journal
EUROPEAN PHYSICAL JOURNAL E
Volume 45, Issue 4, Pages -Publisher
SPRINGER
DOI: 10.1140/epje/s10189-022-00192-4
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Funding
- Russian Foundation for Basic Researches [20-01-00491]
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This study investigates two-dimensional oscillatory flows in a convective cell filled with a colloidal suspension. The nanoparticle transport mechanisms are analyzed and the spatiotemporal characteristics of the stable 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.
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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