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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
Effect of surface roughness on neutral and dense gas dispersion in the BLWT
Original language description
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
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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