Physical Sciences and Mathematics Commons^™

A One-Dimensional Mathematical Model Of Tidal Hydraulics And Salt Intrusion In Estuarine Rivers, Fwu-Ding Lin

Dissertations, Theses, and Masters Projects

A one-dimensional mathematical model has been developed as a practical way to analyze the tidal wave propagation and its interaction with freshwater runoff. The model approaches the problem both theoretically and numerically. To develop this model, the one-dimensional hydrodynamic and salt-balance equations are derived by integrating the three-dimensional equations over the cross section. These differential equations are approximated with implicit finite difference forms and the tidal heights, currents and salinity distributions are solved by using digital computer CDC 6400. The model has been applied to the James River in two different cases: the normal case and hurricane case. Because of …