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Journal of Porous Media
インパクトファクター: 1.752 5年インパクトファクター: 1.487 SJR: 0.43 SNIP: 0.762 CiteScore™: 2.3

ISSN 印刷: 1091-028X
ISSN オンライン: 1934-0508

巻:
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Journal of Porous Media

DOI: 10.1615/JPorMedia.v12.i12.10
pages 1129-1137

Simulation and Characterization of High-Porosity Media for Aerosol Particle Processing: A Numerical Study

Ana Serrenho
Geophysics Centre of Évora, Rua Romão Ramalho, 59, 7000-671 Évora, Portugal; and Department of Civil Engineering, Nationa lUniversity of Ireland, Galway, Ireland
Antonio Ferreira Miguel
Department of Physics, School of Sciences and Technology, University of Evora, Institute of Earth Sciences (ICT) Pole of Evora, Portugal

要約

Processes involving suspensions flow occur in many natural, biological, and industrial systems. Examples also include the production of many advanced materials, such as semiconductors, and new product formulations with importance in pharmaceutical and medical applications. In certain tasks microchannels and porous media are used to promote a rapid mixing of aerosol streams to produce more uniform dispersions and coatings. A major concern for industrial use is caused by the fact that the aerosol particles deposit onto the solid structure of channels and this must be controlled to avoid clogging. We report a study of the application of high-porosity media for the generation of uniform flow suspensions. Two key quantities were used to characterize the process: particle losses (deposition) within the porous medium and residence time distribution of the particles. This study clearly demonstrates that the geometric characteristics of the porous media, the fluid velocity, fluid viscosity, and particle size should be controlled in order to get more uniform dispersions and prevent the unwanted particle loss.


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