Wind-tunnel measurements and LES simulations of air pollutant dispersion caused by fire-induced buoyancy plume inside two parallel street canyons

2020 ◽  
Vol 140 ◽  
pp. 151-169
Author(s):  
Peng-Yi Cui ◽  
Jin-Hao Zhang ◽  
Yi-Ping Wu ◽  
Yan Zhang ◽  
Jia-Zheng Zhou ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Pollutant Dispersion ◽  
Air Pollutant ◽  
Street Canyons ◽  
Air Pollutant Dispersion ◽  
Wind Tunnel Measurements

scholarly journals Modeling of Air Pollutant Dispersion in Street Canyons in Cross-Wind

2009 ◽  
Vol 13 (AEROSPACE SCIENCES) ◽  
pp. 1-13 ◽  
Author(s):  
Ibrahim Gad ◽  
Mofreh. Nasief ◽  
Salem Abdel Aaziz ◽  
Alaa Osman
Keyword(s):  
Pollutant Dispersion ◽  
Air Pollutant ◽  
Street Canyons ◽  
Air Pollutant Dispersion

Case Study of Nanjing Inner Ring on Air Pollution Dispersion from Roadway Tunnel Portals

2012 ◽  
Vol 610-613 ◽  
pp. 1895-1900 ◽  
Author(s):  
Shu Jiang Miao ◽  
Da Fang Fu
Keyword(s):  
Air Pollution ◽  
Pollutant Dispersion ◽  
Air Pollutant ◽  
Urban Traffic ◽  
Lagrangian Model ◽  
Pollution Dispersion ◽  
Piecewise Function ◽  
Air Pollutant Dispersion ◽  
Air Pollution Dispersion

The tunnel module of a rather simple Lagrangian model GRAL (Grazer Langrange model) has been chosen to study air pollutant dispersion around tunnel portals in Nanjing inner ring. Two points have been made to popularize GRAL3.5TM (the tunnel module of a Lagrangian model GRAL; the update was in May 2003) and assure it more suitable for the actual situations in Nanjing. One is to derive a piecewise function of the intermediate parameter ‘stiffness’. Another is to take Romberg NOx-NO2 scheme into account. After these 2 works on GRAL3.5TM, NO2 dispersion from portals of all the 6 tunnels in Nanjing inner ring has been simulated. The importance of limiting urban traffic volume to control air quality around tunnel portals and roadways has been emphasized.

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