Tipo di tesi
Tesi di laurea magistrale
Titolo
Comparison of different sediment transport models for Shallow Water simulations
Dipartimento
INGEGNERIA CIVILE E INDUSTRIALE
Corso di studi
INGEGNERIA AEROSPAZIALE
Riassunto (Italiano)
Phenomenon of sediment transport in a limited depth of water are considered in the present work through the use of a numerical approach.
The physical problem is modeled through the Shallow-Water equation coupled with the Exner one to describe the time evolution of bed and coastal profile. The spatial discretization of the governing equations is carried out by a finite-volume method and a modified Roe scheme designed for nonconservative systems.
The principal contribution of this work concerns sediment transport modelling with an analysis and comparison of different models. In particular four models of solid transport discharge are considered.
Other modelling improvement implemented in the 1D numerical code are also analyzed and treated. It includes the introduction of bed friction term in the Shallow Water equations as well as the treatment of wetting-drying interface modeled, in particular, for coastline evolution analysis.
