POLLUTANT TRANSPORT AND RESIDENCE TIME IN A DISTORTED SCALE-MODEL AND A NUMERICAL-MODEL

A systematic investigation of the circulation, pollutant transport and residence time in a distorted scale model of the Windermere Basin was undertaken by using a numerical approach. A numerical hydrodynamic model was developed to simulate the circulation pattern in the basin. The experimentally validated flow circulation was used as input to the pollutant transport model to simulate the transport of a pollutant continuously introduced at the inlet of the basin. The simulated results were found to be in good agreement with the experimental measurements. With the aid of the validated model, the influence of the wind, recirculation and dead zones, and construction of dikes on the residence time distributions in the basin were examined.