Monte-carlo simulation of aerosol transport in rising spherical bubbles with internal circulation

Influences of primary particle parameters and surfactant on aggregation behavior of nanoparticles in nanorefrigerant

“…(1) The Brownian force is in proportion to d p 1/2 [43], while the nanoparticle mass is in proportion to d p 3 . With the increase of d p , the acceleration of Brownian motion is decreased and the Brownian motion of nanoparticles is weakened, causing the aggregation of nanoparticles to become difficult, which leads to the decrease of n.…”

Accurate control of hyperbolic trajectories in any dimension

“…A common spherical configuration is the Hadamard-Rybczynski solution for Stokes flows [31,32,35,36,66], whose kinematic structure is similar to the classical Hill's spherical vortex [75][76][77][78][79][80][81][82][83][84][85] for Euler flows with an additive solid rotation. Particle trajectories of this flow satisfẏ…”

Monte Carlo simulation of aerosol transport in rising gas bubbles undergoing shape deformation

“…6 and 7, for comparison, the model predictions for ideal and perfectly spherical bubbles, rising in a straight line with a constant velocity equal to the bubble terminal velocity predicted by the correlations of Peebles and Garber (1953), and supporting full internal circulation are also displayed. These ideal-case predictions, referred to in the figures as spherical bubble results, were calculated using the method described in detail in Laker and Ghiaasiaan (2004).…”

“…Furthermore, given the fact that the simulations start with a stationary and spherical bubble with relatively uniform entrained particle distribution, the experimental decontamination factors represent the total measured decontamination factors. Also shown in the figure are the predictions of the aforementioned model of Laker and Ghiaasiaan (2004) which assumes a perfectly spherical bubble moving on a vertical line and supporting ideal Hill's vortex flow-like internal circulation. Fig.…”

“…Yao (1995, 1997) extended the method of Kronig and Brink, and solved the continuum-based (Eulerian) aerosol transport equations in a coordinate system that included the bubble internal circulation streamlines in order to model the transport of particles in spherical and non-oscillating bubbles due to the combined effects of Brownian, diffusive, and inertial mechanisms. More recently, Laker and Ghiaasiaan (2004) used a hybrid Eulerian-Monte-Carlo technique for the simulation of particle motion in spherical, non-oscillating bubbles.…”