Large eddy simulation of particle aggregation in turbulent jets
File(s)
Accepted version
Author(s)
Pesmazoglou, I
Kempf, A
Navarro-Martinez, S
Type
Journal Article
Abstract
Aggregation is an inter-particle process that involves a multitude of different physical and chemical mechanisms. Aggregation processes often occur within turbulent flows; for example in spray drying, soot formation, or nanoparticle formation. When the concentration of particles is very large, a direct simulation of individual particles is not possible and alternative approaches are needed. The present work follows the stochastic aggregation modelling based on a Lagrangian framework by Pesmazoglou, Kempf, and Navarro-Martinez (2016) and implements it in the Large Eddy Simulation context. The new coupled model is used to investigate particle aggregation in turbulent jets. Two cases are considered: an existent Direct Numerical Simulation of nanoparticle agglomeration in a planar jet and an experimental configuration of nanoparticles in a round jet. The results show a good agreement in both cases, demonstrating the advantages of the Lagrangian framework to model agglomeration and it capacity to describe the full particle size distribution.
Date Issued
2017-06-08
Date Acceptance
2017-06-05
Citation
Journal of Aerosol Science, 2017, 111, pp.1-17
ISSN
0021-8502
Publisher
Elsevier
Start Page
1
End Page
17
Journal / Book Title
Journal of Aerosol Science
Volume
111
Copyright Statement
© 2017 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Subjects
Meteorology & Atmospheric Sciences
0904 Chemical Engineering
0401 Atmospheric Sciences
Publication Status
Published