Influence of Upstream Buildings on the Distribution of Pollutants in Street Canyons based on Three-Dimensional BIM Model

Xiaoqiu Ma

Ekoloji, 2019, Issue 108, Pages: 1331-1335


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In order to reduce the influence of upstream buildings on street valley pollution, an analysis of the influence of upstream buildings on the distribution of pollutants in street canyons based on three-dimensional BIM model is proposed. Based on the three-dimensional BIM model, the street valley of four building layout planes is given, and the height of the buildings on the two sides of the street valley is analyzed by numerical simulation and is 15m. The numerical simulation uses FLUENT-6.3.26 as the basic program to simulate the velocity of air flow and the concentration field of pollutants in the solution area. The diffusion equation of pollutants is represented by QUICK scheme. The experimental results show that the swirl in the middle street valley of layout 3 is beneficial to the diffusion of pollutants.


BIM model, upstream building, Gorge, pollutant distribution


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