Konstantinov, Mikhail and Schmeling, Daniel and Wagner, Claus (2023) Numerical Simulation of the Aerosol Formation and Spreading in an Air-Conditioned Train Compartment. Journal of Aerosol Science, 170 (106139), pp. 1-19. Elsevier. doi: 10.1016/j.jaerosci.2023.106139. ISSN 0021-8502.
Full text not available from this repository.
Official URL: https://doi.org/10.1016/j.jaerosci.2023.106139
Abstract
Results of simulations of the unsteady aerosol formation and spreading in a train compartment under ventilation conditions obtained using Computational Fluid Dynamics (CFD) are presented. The latter includes various models to simulate unsteady flows including the transient two-phase atomization process and thermal convection. The aerosol distributions in a ventilated train compartment are discussed analysing the predicted dispersion of the droplets exhaled by the following respiratory events: a double cough, 10 s of speaking or continuous breathing of a passenger wearing a or no mask. The results show that the aerosol particles propagate two times deeper in the compartment for the coughing event than for speaking, 2.5 times deeper than for free breathing and 17 times deeper than for breathing with a mask. Further, it is shown that 2 min after the end of the coughing event, only about 6% of active aerosol particles remain in the compartment.
Item URL in elib: | https://elib.dlr.de/144337/ | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Document Type: | Article | ||||||||||||||||
Title: | Numerical Simulation of the Aerosol Formation and Spreading in an Air-Conditioned Train Compartment | ||||||||||||||||
Authors: |
| ||||||||||||||||
Date: | 19 January 2023 | ||||||||||||||||
Journal or Publication Title: | Journal of Aerosol Science | ||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||
Open Access: | No | ||||||||||||||||
Gold Open Access: | No | ||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||
Volume: | 170 | ||||||||||||||||
DOI: | 10.1016/j.jaerosci.2023.106139 | ||||||||||||||||
Page Range: | pp. 1-19 | ||||||||||||||||
Editors: |
| ||||||||||||||||
Publisher: | Elsevier | ||||||||||||||||
ISSN: | 0021-8502 | ||||||||||||||||
Status: | Published | ||||||||||||||||
Keywords: | Aerosol dispersion, train compartment air flow, computational fluid dynamics (CFD), Lagrangian Multiphase Model | ||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||
HGF - Program: | Transport | ||||||||||||||||
HGF - Program Themes: | Rail Transport | ||||||||||||||||
DLR - Research area: | Transport | ||||||||||||||||
DLR - Program: | V SC Schienenverkehr | ||||||||||||||||
DLR - Research theme (Project): | V - RoSto - Rolling Stock, V - NGT BIT (old) | ||||||||||||||||
Location: | Göttingen | ||||||||||||||||
Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Ground Vehicles | ||||||||||||||||
Deposited By: | Schmeling, Dr Daniel | ||||||||||||||||
Deposited On: | 24 Mar 2023 10:32 | ||||||||||||||||
Last Modified: | 24 Mar 2023 10:32 |
Repository Staff Only: item control page