Wind Tunnel Modeling of Turbulent Diffusion of Pollutant Puffs

1985 ◽  
pp. 441-450
Author(s):  
J. P. Schon ◽  
O. Debbarh ◽  
P. Mejean ◽  
R. Morel ◽  
J. P. Granier
Keyword(s):  
Wind Tunnel ◽  
Turbulent Diffusion

Wind Tunnel Experiments of Atmospheric Turbulent Diffusion.

2016 ◽  
Vol 2016.54 (0) ◽  
pp. 71-72
Author(s):  
Atsushi Kosugi ◽  
Tomoki Furudate ◽  
Satoshi Fukui
Keyword(s):  
Wind Tunnel ◽  
Turbulent Diffusion ◽  
Wind Tunnel Experiments

Wind Tunnel Experiments of Atmospheric Turbulent Diffusion

2000 ◽  
Vol 2000.4 (0) ◽  
pp. 221-222
Author(s):  
Atushi KOSUGI ◽  
Hideharu MAKITA ◽  
Kenji SAITO
Keyword(s):  
Wind Tunnel ◽  
Turbulent Diffusion ◽  
Wind Tunnel Experiments

Measurements of the effect of molecular diffusivity in turbulent diffusion

1960 ◽  
Vol 7 (3) ◽  
pp. 397-400 ◽  
Author(s):  
William R. Mickelsen
Keyword(s):  
Carbon Dioxide ◽  
Wind Tunnel ◽  
Point Source ◽  
Turbulent Diffusion ◽  
Molecular Diffusion ◽  
Independent Contribution ◽  
Total Dispersion ◽  
Molecular Diffusivity ◽  
Continuous Point

Townsend (1954) has shown that turbulent vorticity may rotate and strain a diffusion wake, thereby increasing the contribution of molecular diffusion to the total mean dispersion over short diffusion times. To test whether any such effect occurs at longer diffusion times, the lateral dispersion of both helium and of carbon dioxide in air were measured downstream from a continuous point source in the turbulence produced by a grid in a wind tunnel. The data show that, for long diffusion times, accelerated molecular diffusion is negligible, so that molecular diffusion makes only an independent contribution to the total dispersion.

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