4 research outputs found
Nano-particles transport in a concentric annulus: a lattice Boltzmann approach
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