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Aerosol Particle transport and accumulation in indoor air: comparison of experiment and simulation

Kohl, Andreas and Webner, Florian and Schmeling, Daniel and Wagner, Claus (2022) Aerosol Particle transport and accumulation in indoor air: comparison of experiment and simulation. VAAM Microbiome - Symposium 2022: Space Research meets Medical Microbiology, 08.-09. Dez. 2022, Bonn, Deutschland.

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Official URL: https://vaam.de/media/flyer_vaam_2022_221023_rm.pdf


The global outbreak of SARS-CoV-2 in 2020 made understanding pathogen-laden aerosol transport more relevant than ever to understand an important transmission route. To investigate how aerosol particles accumulate in confined spaces due to continuous breathing, we investigate particle concentrations over time in a small room. The geometry is ventilated and equipped with two heated manikins, one of which is exhaling aerosol continuously through the mouth over 30 minutes. We investigate this setup by means of local particle measurements in the center plane and a RANS simulation with transient particle transport. It is shown that the particle concentration increases logarithmically and attains a nearly steady state, for which we compare the resulting local particle concentrations normalized to the source concentration. We find good agreement to the experiment in the exhalation zone of the breathing manikin and larger differences for the sensor positions beneath the ventilation inlet.

Item URL in elib:https://elib.dlr.de/192291/
Document Type:Conference or Workshop Item (Speech)
Title:Aerosol Particle transport and accumulation in indoor air: comparison of experiment and simulation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kohl, AndreasUNSPECIFIEDhttps://orcid.org/0000-0001-8351-7256UNSPECIFIED
Schmeling, DanielUNSPECIFIEDhttps://orcid.org/0000-0003-2712-9974UNSPECIFIED
Wagner, ClausUNSPECIFIEDhttps://orcid.org/0000-0003-2273-0568UNSPECIFIED
Date:9 December 2022
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Aerosol spreading, Generic train entrance, SARS-CoV-2, CFD, Experiment
Event Title:VAAM Microbiome - Symposium 2022: Space Research meets Medical Microbiology
Event Location:Bonn, Deutschland
Event Type:international Conference
Event Dates:08.-09. Dez. 2022
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
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Ground Vehicles
Deposited By: Kohl, Andreas
Deposited On:16 Dec 2022 12:53
Last Modified:29 Mar 2023 00:53

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