FLOW VISUALIZATION IN AN ESTUARY DISPERSION MODEL INVESTIGATION.

Abstract

A hydraulic model investigation was conducted to determine the likely estuary dispersion pattern of the discharged effluent from a sewerage pumping station outfall extension work into the surrounding seas. The current motion, discharge rates and density effects were modelled. Isopropanol and rhodamine B dye were used for flow visualization and quantitative effluent dispersion concentration studies. Investigations show that isopropanol and rhodamine B dye simulated well the density stratification dispersion pattern around the estuary.