naa a22 4500 510820549 CHVBK 20180411083529.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1007/s11814-012-0203-0 doi (NATIONALLICENCE)springer-10.1007/s11814-012-0203-0 Kim Min Department of Chemical Engineering, Jeju National University, 690-756, Jeju, Korea aut Nonlinear numerical simulation on the onset of Soret-driven motion in a silica nanoparticles suspension [Elektronische Daten] [Min Kim] The onset of buoyancy-driven convection in an initially quiescent, horizontal silica nanoparticle suspension layer heated from above is analyzed theoretically. In this thermally-stably stratified fluid layer the Soret diffusion can induce buoyancy-driven motion for the case of the negative separation ratio. For the high Rayleigh number the convective motion sets in during the transient diffusion stage and the onset time of this motion is analyzed by employing the nonlinear numerical simulation. It is interesting that the convective motion is very weak and the diffusional process is dominant even after the onset time of convection, τ c , and the nonlinear effects are manifested from the time τ m (>τ c ). The present τ m explains the existing experimental results quite well. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 Soret-driven Convection nationallicence Silica Nanoparticles Suspension nationallicence Nonlinear Analysis nationallicence Numerical Simulation nationallicence Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/4(2013-04-01), 831-835 0256-1115 30:4<831 2013 30 11814 https://doi.org/10.1007/s11814-012-0203-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-012-0203-0 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Kim Min Department of Chemical Engineering, Jeju National University, 690-756, Jeju, Korea aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/4(2013-04-01), 831-835 0256-1115 30:4<831 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer