ABSTRACT

ABSTRACT: Depth averaged models are widely used in engineering practice in order to model environmental flows in river and coastal regions, as well as shallow flows in hydraulic structures. This paper deals with two issues of depth averaged numerical modelling: turbulence models and the discretisation of source terms. The most important and widely used depth averaged turbulence models are reviewed and discussed, and the upwind discretisation of the bed slope source term is justified. Several practical applications are presented, and the numerical results are compared with experimental data.