Concentration and flow distributions in the vicinity of U-shaped buildings: Wind-tunnel and computational data

摘要: Abstract The flow and dispersion of gases emitted by point sources located near a U-shaped building were determined the prognostic model FLUENT using RNG κ−e turbulent closure approximation. Calculations are compared against wind-tunnel measurements about such several other diagnostic numerical models. gives mixed image in terms accuracy predicted concentrations to wind tunnel experiment. For identical boundary conditions higher as well lower concentration values calculated for different test cases. Ground level show discrepancies than situations where tracer was from roof building. A major error source found be stationary solution procedure that chosen all simulations.