Non-steady-state aerosol filtration in nanostructured fibrous media

作者:Przekop Rafal*; Gradon Leon
来源:Philosophical Transactions of the Royal Society A-Mathematical Physical and Engineering Sciences, 2011, 369(1945): 2476-2484.
DOI:10.1098/rsta.2011.0063

摘要

The filtration of aerosol particles using composites of nano- and microsized fibrous structures is a promising method for the effective separation of nanoparticles from gases. A multi-scale physical system describing the flow pattern and particle deposition at a non-steady-state condition requires an advanced method of modelling. The combination of lattice Boltzmann and Brownian dynamics was used for analysis of the particle deposition pattern in a fibrous system. The dendritic structures of deposits for neutral and charged fibres and particles are present. The efficiency of deposition, deposit morphology, porosity and fractal dimension were calculated for a selected operational condition of the process.

  • 出版日期2011-6-28