Capacities and Limitations of Wind Tunnel Physical Experiments on Motion and Dispersion of Different Density Gas Pollutants

The article focuses on the analysis of the possibilities to model motion and dispersion of plumes of different density gas pollutants in lowspeed wind tunnels based on the application of physical similarity criteria, in this case the Froude number. The analysis of the physical nature of the modeled...

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Main Authors: Zavila Ondřej, Blejchař Tomáš
Format: Article
Language:English
Published: Sciendo 2017-04-01
Series:Measurement Science Review
Subjects:
Online Access:http://www.degruyter.com/view/j/msr.2017.17.issue-2/msr-2017-0007/msr-2017-0007.xml?format=INT
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author Zavila Ondřej
Blejchař Tomáš
author_facet Zavila Ondřej
Blejchař Tomáš
author_sort Zavila Ondřej
collection DOAJ
description The article focuses on the analysis of the possibilities to model motion and dispersion of plumes of different density gas pollutants in lowspeed wind tunnels based on the application of physical similarity criteria, in this case the Froude number. The analysis of the physical nature of the modeled process by the Froude number is focused on the influence of air flow velocity, gas pollutant density and model scale. This gives an idea of limitations for this type of physical experiments in relation to the modeled real phenomena. The resulting statements and logical links are exemplified by a CFD numerical simulation of a given task calculated in ANSYS Fluent software.
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spelling doaj.art-aac843de0c134766b6b196bacb7ddb1c2022-12-22T02:48:50ZengSciendoMeasurement Science Review1335-88712017-04-01172536010.1515/msr-2017-0007msr-2017-0007Capacities and Limitations of Wind Tunnel Physical Experiments on Motion and Dispersion of Different Density Gas PollutantsZavila Ondřej0Blejchař Tomáš1Department of Fire Protection, Faculty of Safety Engineering, VŠB - Technical University of Ostrava, Lumírova 13/630, Ostrava - Výškovice, 700 30, CzechiaDepartment of Hydrodynamics and Hydraulic Equipment, Faculty of Mechanical Engineering, VŠB - Technical University of Ostrava, 17. listopadu 15, Ostrava – Poruba, 708 33, CzechiaThe article focuses on the analysis of the possibilities to model motion and dispersion of plumes of different density gas pollutants in lowspeed wind tunnels based on the application of physical similarity criteria, in this case the Froude number. The analysis of the physical nature of the modeled process by the Froude number is focused on the influence of air flow velocity, gas pollutant density and model scale. This gives an idea of limitations for this type of physical experiments in relation to the modeled real phenomena. The resulting statements and logical links are exemplified by a CFD numerical simulation of a given task calculated in ANSYS Fluent software.http://www.degruyter.com/view/j/msr.2017.17.issue-2/msr-2017-0007/msr-2017-0007.xml?format=INTPhysical similarityaerodynamic tunnelFroude numberCFDgas pollutant
spellingShingle Zavila Ondřej
Blejchař Tomáš
Capacities and Limitations of Wind Tunnel Physical Experiments on Motion and Dispersion of Different Density Gas Pollutants
Measurement Science Review
Physical similarity
aerodynamic tunnel
Froude number
CFD
gas pollutant
title Capacities and Limitations of Wind Tunnel Physical Experiments on Motion and Dispersion of Different Density Gas Pollutants
title_full Capacities and Limitations of Wind Tunnel Physical Experiments on Motion and Dispersion of Different Density Gas Pollutants
title_fullStr Capacities and Limitations of Wind Tunnel Physical Experiments on Motion and Dispersion of Different Density Gas Pollutants
title_full_unstemmed Capacities and Limitations of Wind Tunnel Physical Experiments on Motion and Dispersion of Different Density Gas Pollutants
title_short Capacities and Limitations of Wind Tunnel Physical Experiments on Motion and Dispersion of Different Density Gas Pollutants
title_sort capacities and limitations of wind tunnel physical experiments on motion and dispersion of different density gas pollutants
topic Physical similarity
aerodynamic tunnel
Froude number
CFD
gas pollutant
url http://www.degruyter.com/view/j/msr.2017.17.issue-2/msr-2017-0007/msr-2017-0007.xml?format=INT
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AT blejchartomas capacitiesandlimitationsofwindtunnelphysicalexperimentsonmotionanddispersionofdifferentdensitygaspollutants