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Title: Numerical modelling of tidal dynamics in a one-dimensional branching estuary
Author: Nassehi, V.
Awarding Body: University College of Swansea
Current Institution: Swansea University
Date of Award: 1982
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The one-dimensional hydrodynamical equations of motion and continuity and the equation of transport of salt in a narrowand relatively shallow estuary are derived and solved numerically. Four different numerical solutions of the hydrodynamical equations are presented. These are based on: i) two explicit finite difference schemes (leap-frog and two-step Lax-Wendroff), ii) a four point implicit finite difference scheme, and iii) a Galerkin finite element method. These four numerical methods are used to develop mathematical models for the tidal dynamics in the Tay estuary. The finite element model is shown to be the most advantageous technique for the mathematical simulation of the tidal dynamics in branching estuaries. A combined hydrodynamical and salt intrusion model for a one-dimensional branching estuary based on the finite element method is successfully used to simulate water levels, discharges and salinities throughout Upper Milford Haven estuary between Carr Jetty and tidal limits of Eastern and Western Cleddau.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available