FINITE-ELEMENT SIMULATION OF DISPERSION IN THE BAY OF SANTANDER

Two mathematical models are used to simulate pollution in the Bay of S antander. The first is the hydrodynamic model that provides the veloci ty field and height of the water. The second gives the pollutant conce ntration field as a resultant. Both models are formulated in two-dimen sional equations. Linear triangular finite elements are used in the Ga lerkin procedure for spatial discretization. A finite difference schem e is used for the time integration. At each time step the calculated r esults of the first model are input to the second model as field data. The efficiency and accuracy of the models are tested by their applica tion to a simple illustrative example. Finally a case study in simulat ion of pollution evolution in the Bay of Santander is presented. (C) 1 997 Elsevier Science Limited.