Since 1963
ARTICLE
Nano-particles transport in a concentric annulus: a lattice Boltzmann approach
1
Department of Mechanical and Aerospace Engineering, Ramsar Branch, Islamic Azad University, Ramsar
2
Young Researchers Club, Babol Branch, Islamic Azad University, Babol
3
Young Researchers and Elite Club, Karaj Branch, Islamic Azad University, Karaj
Journal of Theoretical and Applied Mechanics 2015;53(3):683-695
KEYWORDS
ABSTRACT
A combination of the lattice Boltzmann method and lagrangian Runge-Kutta procedure is used to study dispersion and removal of nano-particles in a concentric annulus. The effect of aspect ratio, Rayleigh number and particles diameter are examined on particles removal and their dispersion characteristics. Simulations are performed for the Rayleigh number ranges from 103 to 105 and aspect ratio of 2, 3 and 4. Higher aspect ratios have led to weaker recirculation strength. The finest particles move on stochastic path due to the effect of Brownian motion. The Brownian motion has a greater effect on the removal of nano-particles with respect to thermophoresis.
| eISSN: | 2543-6309 |
| ISSN: | 1429-2955 |
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