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

Volume 12, Numéro 12, 2009, pp. 1129-1137
DOI: 10.1615/JPorMedia.v12.i12.10
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RÉSUMÉ

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.

CITÉ PAR
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  2. Miguel Antonio F., Experimental Study on Nanofluid Flow in a Porous Cylinder: Viscosity, Permeability and Inertial Factor, Defect and Diffusion Forum, 362, 2015. Crossref

  3. Miguel Antonio F., Modelling of Mass Transport in Porous Materials: Analytical Solutions and Analysis, Defect and Diffusion Forum, 348, 2014. Crossref

  4. Aydın Mahmut, Günaydınoğlu Erkan, Aydın Murat, Miguel Antonio F., Gas-Solid Suspension Flow near Walls: Particle Statistical Mechanics Model and Particle Force Balance Equation, Defect and Diffusion Forum, 348, 2014. Crossref

  5. Serrenho Ana, Miguel Antonio F., Fluid Flow and Solid/Fluid Suspensions Flow in 3-D Packed Beds of Spheres: The Effect of Periodicity of Fixed Beds, Defect and Diffusion Forum, 312-315, 2011. Crossref

  6. Acikgoz M.B., Akay Baris, Miguel Antonio F., Aydın Murat, Airborne Pathogens Transport in an Aircraft Cabin, Defect and Diffusion Forum, 312-315, 2011. Crossref

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  8. Hemmat Esfe Mohammad, Bahiraei Mehdi, Hajbarati Hamid, Valadkhani Majid, A comprehensive review on convective heat transfer of nanofluids in porous media: Energy-related and thermohydraulic characteristics, Applied Thermal Engineering, 178, 2020. Crossref

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