Communications on Hydraulic and Geotechnical Engineering: Flow Patterns andTransport of Dissolved Matter in Tidal Harbours

摘要

In the present study the influence of the harbor entrance geometry on thevelocity and density fields in the entrance of a tidal harbor is examined by means of laboratory experiments and a field measurement. These experiments have provided a data set through which three numerical models for the flow and transport of dissolved matter in harbor entrances were tested and calibrated. The three main flow processes that determine the exchange of matter between harbor and river are: (1) the velocity difference between the flow in the river and that in the resulting gyre in the harbor entrance, (2) a net flow through the entrance (in the study caused by variations in water level), and (3) a density-driven exchange flow. These processes and their interactions were examined.