The collection of airborne dusts by bluff bodies

Numerical study of solid particles motion and deposition in a filter with regular and irregular arrangement of blocks with using Lattice Boltzmann method

“…Finally, it is obtained that most of the particles deposited on the first block and the deposition efficiency on the surface of block in the channel containing a single block is more than regular and irregular structure filters. (2001), Li et al (1994) and Vincent and Humphries (1978) results. Chen et al (2002) and Kim and Anand (1995) results.…”

“…7 and 8 compare the model prediction of velocity profiles around block in the vertical and horizontal directions, respectively, with the Zhaoli et al (2008) results to check the numerical results accuracy.Fig. 9validates the model predictions of particles deposition efficiency (the ratio of total number of particles deposited on the block walls to total number of particles entered the channel) without Brownian effects usingBrandon and Aggarawal (2001),Li et al (1994) andVincent and Humphries (1978) results. These validations approve the accuracy of the model predictions.…”

Investigation of particle dispersion and deposition in a channel with a square cylinder obstruction using the lattice Boltzmann method

“…3 shows the variation of particle deposition efficiency with particle Stokes number for the front side of the block. The theoretical prediction by Longmuir and Blodgett (as reported by Fuchs, 1964) and the data of Brandon and Aggarwal (2001), Vincent and Humphries (1978) and simulation results of Li et al (1994) are reproduced in the figure for comparison. The figure shows that the particle deposition efficiency increases rapidly with the particle Stokes number for Stokes numbers greater than 0.1.…”

Prediction of Particle Deposition from a Turbulent Stream around a Surface-Mounted Ribbon

“…One factor that will certainly influence the deposition rate on the back of the ribbon is the concentration of particles that becomes trapped in the recirculation region. The transport of particles into and out of the recirculation region behind a ribbon is controlled, on the one hand, by the particles' ability to follow the mean flow streamlines and, on the other hand, by their ability to follow the local turbulent motions of the fluid in the shear layer (Vincent and Humphries, 1978).…”