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http://hdl.handle.net/10397/106413
Title: | A coupled LES-Monte Carlo method for simulating aerosol dynamics in a turbulent planar jet | Authors: | Liu, H Chan, TL |
Issue Date: | 3-Feb-2020 | Source: | International journal of numerical methods for heat and fluid flow, 3 Feb. 2020, v. 30, no. 2, p. 855-881 | Abstract: | Purpose: The purpose of this paper is to study the evolution and growth of aerosol particles in a turbulent planar jet by using the newly developed large eddy simulation (LES)-differentially weighted operator splitting Monte Carlo (DWOSMC) method. Design/methodology/approach: The DWOSMC method is coupled with LES for the numerical simulation of aerosol dynamics in turbulent flows. Findings: Firstly, the newly developed and coupled LES-DWOSMC method is verified by the results obtained from a direct numerical simulation-sectional method (DNS-SM) for coagulation occurring in a turbulent planar jet from available literature. Then, the effects of jet temperature and Reynolds number on the evolution of time-averaged mean particle diameter, normalized particle number concentration and particle size distributions (PSDs) are studied numerically on both coagulation and condensation processes. The jet temperature and Reynolds number are shown to be two important parameters that can be used to control the evolution and pattern of PSD in an aerosol reactor. Originality/value: The coupling between the Monte Carlo method and turbulent flow still encounters many technical difficulties. In addition, the relationship between turbulence, particle properties and collision kernels of aerosol dynamics is not yet well understood due to the theoretical limitations and experimental difficulties. In the present study, the developed and coupled LES-DWOSMC method is capable of solving the aerosol dynamics in turbulent flows. |
Keywords: | Aerosol dynamics Differentially weighted operator splitting Monte Carlo Jet temperature and Reynolds number Particle size distribution Turbulent flow |
Publisher: | Emerald Publishing Limited | Journal: | International journal of numerical methods for heat and fluid flow | ISSN: | 0961-5539 | EISSN: | 1758-6585 | DOI: | 10.1108/HFF-11-2018-0657 | Rights: | © Emerald Publishing Limited. This AAM is provided for your own personal use only. It may not be used for resale, reprinting, systematic distribution, emailing, or for any other commercial purpose without the permission of the publisher. The following publication Liu, H. and Chan, T.L. (2020), "A coupled LES-Monte Carlo method for simulating aerosol dynamics in a turbulent planar jet", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 30 No. 2, pp. 855-881 is published by Emerald and is available at https://doi.org/10.1108/HFF-11-2018-0657. |
Appears in Collections: | Journal/Magazine Article |
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Liu_Coupled_LES-Monte_Carlo.pdf | Pre-Published version | 1.33 MB | Adobe PDF | View/Open |
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