Effect of surface roughness on neutral and dense gas dispersion in the BLWT

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F12%3A%230001458" target="_blank" >RIV/00010669:_____/12:#0001458 - isvavai.cz</a>

Výsledek na webu

<a href="http://library.witpress.com/pages/PaperInfo.asp?PaperID=23274" target="_blank" >http://library.witpress.com/pages/PaperInfo.asp?PaperID=23274</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2495/AIR120111" target="_blank" >10.2495/AIR120111</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of surface roughness on neutral and dense gas dispersion in the BLWT

Popis výsledku v původním jazyce

Measurements of neutral and dense gas dispersion in a boundary layer wind tunnel with different surface roughness were performed. Neutral or dense gas was emitted from a small ?quasi-point? source located in the wind tunnel floor. This ?quasi-point? source represents leakages of gases from small industrial plants in the urban area. The tunnel surface was either covered with uniform roughness or with a smooth surface in order to create a significant difference in the boundary layer mean velocity profileand turbulence intensity. Also influence of plume momentum on vertical and horizontal distribution of tracer gas concentration above the source was studied. Both neutral and dense gases were marked with tracer gas (ethane) and concentrations were measured with a comb probe connected to four flame ionization detectors (FID). Results have shown that plume momentum significantly affects plume shape. Boundary layer turbulence intensity also affected plume behavior, but to a lesser degree tha

Název v anglickém jazyce

Effect of surface roughness on neutral and dense gas dispersion in the BLWT

Popis výsledku anglicky

Measurements of neutral and dense gas dispersion in a boundary layer wind tunnel with different surface roughness were performed. Neutral or dense gas was emitted from a small ?quasi-point? source located in the wind tunnel floor. This ?quasi-point? source represents leakages of gases from small industrial plants in the urban area. The tunnel surface was either covered with uniform roughness or with a smooth surface in order to create a significant difference in the boundary layer mean velocity profileand turbulence intensity. Also influence of plume momentum on vertical and horizontal distribution of tracer gas concentration above the source was studied. Both neutral and dense gases were marked with tracer gas (ethane) and concentrations were measured with a comb probe connected to four flame ionization detectors (FID). Results have shown that plume momentum significantly affects plume shape. Boundary layer turbulence intensity also affected plume behavior, but to a lesser degree tha

Druh

D - Stať ve sborníku

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Air Pollution XX

ISBN

978-1-84564-582-3

ISSN

1743-3541

e-ISSN

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Počet stran výsledku

11

Strana od-do

111-121

Název nakladatele

WIT Press

Místo vydání

Southampton

Místo konání akce

La Coruňa, Spain

Datum konání akce

1. 1. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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