<abstract xmlns="http://www.w3.org/1999/xhtml"><p> 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.</p></abstract>

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.

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

Department of Fire Protection, Faculty of Safety Engineering, VŠB - Technical University of Ostrava, Lumírova 13/630, Ostrava - Výškovice, 700 30,

Department of Hydrodynamics and Hydraulic Equipment, Faculty of Mechanical Engineering, VŠB - Technical University of Ostrava, 17. listopadu 15, Ostrava – Poruba, 708 33,

Measurement Science Review

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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...

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

Publié en ligne: 26 avr. 2017

Pages: 53 - 60

Reçu: 18 nov. 2016

Accepté: 06 févr. 2017

DOI: https://doi.org/10.1515/msr-2017-0007

Mots clés
Physical similarity, aerodynamic tunnel, Froude number, CFD, gas pollutant

© by Ondřej Zavila

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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

Publié en ligne: 26 avr. 2017

Pages: 53 - 60

Reçu: 18 nov. 2016

Accepté: 06 févr. 2017

DOI: https://doi.org/10.1515/msr-2017-0007

Mots clésPhysical similarity, aerodynamic tunnel, Froude number, CFD, gas pollutant

© by Ondřej Zavila

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mots clés
Physical similarity, aerodynamic tunnel, Froude number, CFD, gas pollutant