Study on pollutant diffusion of adjacent industrial buildings with different distances under wind pressure ventilation
In order to study the diffusion law and distribution of pollutants in adjacent industrial buildings and street canyons,CFD fluid simulation software was used to establish adjacent industrial building models to simulate the dif-fusion of nitrogen dioxide pollutants in building interiors and street canyons under different building distances.The in-fluence of building distances on pollutant diffusion distribution in building interior and street canyon under wind pres-sure ventilation was analyzed.The results show that with the increase of building spacing,the ventilation form of down-wind buildings will change significantly,from the through-the-hall wind to the leeward window as the main air intake mode;at the same time,under the action of incoming wind,the nitrogen dioxide pollutants released by the upwind buildings are more likely to flow out from the top of the building street canyon,thereby significantly reducing the pol-lutant concentration in the street canyon and the downwind building interior.
万方数据
维普
