Validation of similarity row in wind tunnel experiment for pollutant dispersion

Effect of model scale factor is on the non-dimensional concentration

Abstract

In the prediction of the concentration of pollutants by wind tunnel experiments, in the case where a wide range of contaminant diffusion is targeted, there is no choice but to reduce the scaling factor of the model from the limitation of the size of the wind tunnel, so that there is a possibility that the accuracy of the experiment will decrease .
Therefore, in this study, we conducted a wind tunnel experiment in which the scale ratio of the model was changed to 1/300, 1/600, 1/1000, and investigated the influence of the model scale ratio on the non-dimensional concentration.