Modeling of Pollutant Dispersion in Stratified Oscillatory Flows

Abstract

A model is presented for predicting the rate of longitudinal dispersion in nonhomogeneous oscillatory flows. The model consists of mathematical representations of velocity and salinity over a cross section and their application to the classical definition of the longitudinal dispersion coefficient. Velocity and salinity data collected over 2 years in the Tyne estuary were analyzed for investigating principal factors controlling longitudinal dispersion. The results indicate that the model can simulate dispersive flux directly in an estuary and can be applied to a water quality model.