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Statements

Subject Item
n2:RIV%2F61388998%3A_____%2F13%3A00393291%21RIV14-MSM-61388998
rdf:type
n12:Vysledek skos:Concept
dcterms:description
A considerable variety of wind tunnels have been designed and constructed to investigate a wide range of aerodynamic tasks. Nowadays, environmental wind tunnels designed to simulate Atmospheric Boundary Layer are very attractive. They are used to determine air pollution, wind loads on buildings and constructions, snowdrift, accident with the discharge of harmful substances, pedestrian wind comfort, etc. Several requirements for experiments in meteorological or environmental tasks have to be fulfilled in order to transfer results from small scale wind tunnel experiments to full scale: 1) proper scaling: matching the scale of the model and the boundary layer scale; 2) matching dimensionless similarity numbers, especially the Reynolds numbers; 3) proper simulation of air flow, including distribution of velocity and turbulence characteristics within the boundary layer; 4) acquiring the zero pressure gradient for equilibrium boundary layer. The similarity requirements are the starting point for the environmental wind tunnel design. Some types of these wind tunnels are introduced in this chapter, and their construction is briefly described. Integral part of environmental wind tunnel laboratories is their experimental equipment. Special devices are described, including systems for flow visualization, for turbulent characteristics and concentrations measurements. Some examples of the tasks solved in the environmental wind tunnels are mentioned at the end. A considerable variety of wind tunnels have been designed and constructed to investigate a wide range of aerodynamic tasks. Nowadays, environmental wind tunnels designed to simulate Atmospheric Boundary Layer are very attractive. They are used to determine air pollution, wind loads on buildings and constructions, snowdrift, accident with the discharge of harmful substances, pedestrian wind comfort, etc. Several requirements for experiments in meteorological or environmental tasks have to be fulfilled in order to transfer results from small scale wind tunnel experiments to full scale: 1) proper scaling: matching the scale of the model and the boundary layer scale; 2) matching dimensionless similarity numbers, especially the Reynolds numbers; 3) proper simulation of air flow, including distribution of velocity and turbulence characteristics within the boundary layer; 4) acquiring the zero pressure gradient for equilibrium boundary layer. The similarity requirements are the starting point for the environmental wind tunnel design. Some types of these wind tunnels are introduced in this chapter, and their construction is briefly described. Integral part of environmental wind tunnel laboratories is their experimental equipment. Special devices are described, including systems for flow visualization, for turbulent characteristics and concentrations measurements. Some examples of the tasks solved in the environmental wind tunnels are mentioned at the end.
dcterms:title
Environmental Wind Tunnels Environmental Wind Tunnels
skos:prefLabel
Environmental Wind Tunnels Environmental Wind Tunnels
skos:notation
RIV/61388998:_____/13:00393291!RIV14-MSM-61388998
n12:predkladatel
n13:ico%3A61388998
n3:aktivita
n4:P n4:I
n3:aktivity
I, P(OC 113)
n3:dodaniDat
n5:2014
n3:domaciTvurceVysledku
n14:8949573 n14:5538408
n3:druhVysledku
n9:C
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
73049
n3:idVysledku
RIV/61388998:_____/13:00393291
n3:jazykVysledku
n7:eng
n3:klicovaSlova
wind tunnel; air pollution; atmospheric boundary layer
n3:klicoveSlovo
n8:air%20pollution n8:wind%20tunnel n8:atmospheric%20boundary%20layer
n3:kontrolniKodProRIV
[AFE75B02F767]
n3:mistoVydani
New York
n3:nazevZdroje
Wind Tunnels: Design/Construction, Types and Usage Limitations
n3:obor
n10:BK
n3:pocetDomacichTvurcuVysledku
2
n3:pocetStranKnihy
153
n3:pocetTvurcuVysledku
2
n3:projekt
n20:OC%20113
n3:rokUplatneniVysledku
n5:2013
n3:tvurceVysledku
Jurčáková, Klára Jaňour, Zbyněk
s:numberOfPages
20
n16:hasPublisher
Nova Science Publishers, Inc.
n19:isbn
978-1-62618-396-4