Simulation of Diffusion before and after NO2 Purification at the Entrance of The Wuhan Lianghu Tunnel
To determine whether the concentration of NO2 at the entrance of Wuhan Lianghu Tunnel can meet the environmental requirements of the hole mouth after taking purification mearsures,the measured statistics of the two tunnels that have been built are first carried out,and the specific pollutants that need to be purified are determined to be NO2.And then the diffusion range of NO2 is predicted according to the German empirical model.Finally,the numerical simulation is carried out by calculating the fluid dynamics software.Comparing the prediction results with the model calculation results,it was determined that the concentration of NO2 in the Wuhan Lianghu Tunnel after purification can meet the environmental requirements.
Lianghu TunnelNO2on site measurementpredictionnumerical simulation
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