LAD-3D: Modelo 3D de simulación de la dispersión en campo cercano y lejano de contaminantes en aguas gosteras

Abstract

Two-diineiisional numerical models have been extensively used the far field to solve hydrodynamics and the associated pollutant transport; however the obtained from these models may not be valid wlieii used in the lzear field or in areas where the hydrodynamics is mainly 3D, as in the case of wind-induced currents in the nearshore region, or wave-induce currents in the surf-zone. A 3D lagrangian numerical model has been developed to solve the three-dimensional convection-diffusion equation, and therefore to simulate pollutant transport in non-uniform and stratified hydrodynamic flows. In this paper the model is described in detail and it is applied to the real case of the Besos sea outfall, near Barcelona city (SpanishMediterraiiean coast).

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