Preliminary Studies of Video Images of Smoke Dispersion in the Near Wake of a Model Building

摘要

A summary of analyses of video images of smoke in a wind tunnel study of dispersion in the near wake of a model building is presented. The analyses provide information on both the instantaneous and the time-average patterns of dispersion. Since the images represent vertically-integrated or crosswind-integrated smoke concentration, only the primary spatial and temporal scales of pollutant dispersion can be examined. Special graphic displays of the results are presented to have great potential as an easily quantifiable electronic medium for studying the dispersion of smoke.