Evaluation of computational room flow simulations by means of experimental methods

  • This study focuses on the numerical simulation of air flows in classrooms to investigate comfort, infection control and energy efficiency. At first validation methods of a computational fluid dynamics (CFD) simulation such as the mesh independence test and experimental validation are explained in detail. A mesh study is then carried out to determine the optimum mesh density for CFD simulations of the ventilation laboratory (room volume 123 m3). The experimental validation carried out shows that the simulation model reflects reality very well. Considering the measurement tolerance, the maximum deviation of the simulation from reality is 6.30% for the temperature and 8.29% for the air velocity. This validated CFD model is the basis for high-quality simulations of different ventilation scenarios. Specifically, the spread of airborne pathogens such as coronaviruses in classrooms will be investigated. This should help to implement future infection control measures in a more targeted manner.

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Metadaten
Author:Jonathan Griener, Susanna BordinORCiD, Arno Dentel
URN:urn:nbn:de:bvb:92-opus4-27398
DOI:https://doi.org/10.34646/thn/ohmdok-2739
Document Type:conference proceeding (article)
Language:English
Date of first Publication:2024/07/10
Publishing Institution:Technische Hochschule Nürnberg Georg Simon Ohm
Release Date:2024/12/17
Tag:CFD-simulation; flow-laboratory; mesh-independence; validation; ventilation
Pagenumber:8
Konferenzangabe:Indoor Air, 2024, Hawaii
institutes:Institut für Energie und Gebäude (ieg)
Research Themes:Energie & Ressourcen
Licence (German):Keine Lizenz - Deutsches Urheberrecht gilt
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