Effect of particle and fiber size on the morphology of deposits in fibrous filters

The capture of aerosol particles during their production and purification of air at workplace and atmospheric environment require an efficient separation method of particulate matter from the carrier gas. Many papers have been published recently on the deposition of particles on fibrous collectors, often using the classical continuum approach to describe the process. However, the approach is not convenient for studying the influence of particle deposition on filter performance (filtration efficiency and pressure drop) when one has to introduce nonsteady‐state boundary conditions. For the purpose of this work, the lattice Boltzmann model describes fluid dynamics, while the solid particle motion is modeled by the Brownian dynamics. The aim of this study is to model the influence of single particle loading (amount and morphology – e.g., porosity and fractal dimension) on its performance. Copyright © 2014 John Wiley & Sons, Ltd.