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Inertial Particle Deposition in a 90-degree Laminar-flow Bend - An Eulerian Fluid-particle Approach

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A numerical model for the simulation of aerosol flows via an Eulerian-Eulerian, one-way coupled, two-phase flow description is presented. An in-house computational fluid dynamics code is used to simulate the gaseous (continuous) phase, whereas a modified convective diffusion equation models particle transport. The convective diffusion equation, which includes inertial, gravitational and diffusive particle transport, is solved by computational fluid dynamics techniques. The model is validated by comparing the calculated laminar fluid flow and particle deposition fractions to analytical and experimentally studied aerosol flows in a laminar-flow 90-degree bend of circular cross-section available in the literature. Model predictions are also compared to numerical predictions of Eulerian-Lagrangian models. Particle concentration profiles at different cross-sections are calculated, and deposition sites on the wall boundary are indicated. For the range of studied particle diameters the Eulerian-Eulerian model predicts deposition fractions satisfactorily, being in good agreement with the experimental data.
2011-10-14
TAYLOR & FRANCIS INC
JRC65163
0278-6826,   
http://www.tandfonline.com/doi/abs/10.1080/02786826.2011.596171#preview,    https://publications.jrc.ec.europa.eu/repository/handle/JRC65163,   
10.1080/02786826.2011.596171,   
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