SIGNIFICANCE OF TRAFFIC PRODUCED TURBULENCE FOR URBAN DISPERSION MODELING

摘要

The traditional concentration scaling with a roof-level wind velocity was shown to be inappropriate in urban street canyon situations. It results in significantly overestimated concentrations (see Fig 2a, c) particularly for the largest concentrations. On the other hand, the proposed modified scaling approach accounting for TPT effects results in a substantial improvement in the concentrations predictions (see Fig 2b, d).