A WIND TUNNEL EXPERIMENTAL STUDY ON THE RELATIVE EFFECT OF TURBULENCE AND CROSSWIND SHEAR IN THE DISPERSION OF AIR POLLUTANTS

In this paper,a new experimental technique with crosswind shear effect is described in detail.If the rate of wind directional variation from the earth surface is about 0.02(°)/m,results of this experiment demonstrate that the neglect of the Rossby number can lead to serious errors as the modoling of diffusion in a prototype with length scale greater than six ometers.